From 40a5a0c7faa4d8cf20ccd68a4749d5d4ffdcfb3b Mon Sep 17 00:00:00 2001 From: Helmut Pozimski Date: Thu, 24 Aug 2017 14:44:02 +0200 Subject: [PATCH] libxml2: add patches for multiple CVEs patches from the GNOME libxml2 git repository at https://git.gnome.org/browse/libxml2/ , revisions: CVE-2016-4658 c1d1f7121194036608bf555f08d3062a36fd344b CVE-2016-5131 a005199330b86dada19d162cae15ef9bdcb6baa8 and 9ab01a277d71f54d3143c2cf333c5c2e9aaedd9e CVE-2017-0663 92b9e8c8b3787068565a1820ba575d042f9eec66 CVE-2017-7375 90ccb58242866b0ba3edbef8fe44214a101c2b3e CVE-2017-7376 5dca9eea1bd4263bfa4d037ab2443de1cd730f7e CVE-2017-9047 932cc9896ab41475d4aa429c27d9afd175959d74 CVE-2017-9048 932cc9896ab41475d4aa429c27d9afd175959d74 CVE-2017-9049 e26630548e7d138d2c560844c43820b6767251e3 CVE-2017-9050 e26630548e7d138d2c560844c43820b6767251e3 --- srcpkgs/libxml2/patches/CVE-2016-4658.patch | 249 ++++++++++++++ srcpkgs/libxml2/patches/CVE-2016-5131.patch | 208 ++++++++++++ srcpkgs/libxml2/patches/CVE-2017-0663.patch | 43 +++ srcpkgs/libxml2/patches/CVE-2017-7375.patch | 35 ++ srcpkgs/libxml2/patches/CVE-2017-7376.patch | 31 ++ .../patches/CVE-2017-9047-CVE-2017-9048.patch | 116 +++++++ .../patches/CVE-2017-9049-CVE-2017-9050.patch | 316 ++++++++++++++++++ srcpkgs/libxml2/template | 2 +- 8 files changed, 999 insertions(+), 1 deletion(-) create mode 100644 srcpkgs/libxml2/patches/CVE-2016-4658.patch create mode 100644 srcpkgs/libxml2/patches/CVE-2016-5131.patch create mode 100644 srcpkgs/libxml2/patches/CVE-2017-0663.patch create mode 100644 srcpkgs/libxml2/patches/CVE-2017-7375.patch create mode 100644 srcpkgs/libxml2/patches/CVE-2017-7376.patch create mode 100644 srcpkgs/libxml2/patches/CVE-2017-9047-CVE-2017-9048.patch create mode 100644 srcpkgs/libxml2/patches/CVE-2017-9049-CVE-2017-9050.patch diff --git a/srcpkgs/libxml2/patches/CVE-2016-4658.patch b/srcpkgs/libxml2/patches/CVE-2016-4658.patch new file mode 100644 index 00000000000..32579e1cf11 --- /dev/null +++ b/srcpkgs/libxml2/patches/CVE-2016-4658.patch @@ -0,0 +1,249 @@ +From c1d1f7121194036608bf555f08d3062a36fd344b Mon Sep 17 00:00:00 2001 +From: Nick Wellnhofer +Date: Tue, 28 Jun 2016 18:34:52 +0200 +Subject: Disallow namespace nodes in XPointer ranges + +Namespace nodes must be copied to avoid use-after-free errors. +But they don't necessarily have a physical representation in a +document, so simply disallow them in XPointer ranges. + +Found with afl-fuzz. + +Fixes CVE-2016-4658. +--- + xpointer.c | 149 +++++++++++++++++++++++-------------------------------------- + 1 file changed, 56 insertions(+), 93 deletions(-) + +diff --git a/xpointer.c b/xpointer.c +index a7b03fb..694d120 100644 +--- xpointer.c ++++ xpointer.c +@@ -320,6 +320,45 @@ xmlXPtrRangesEqual(xmlXPathObjectPtr range1, xmlXPathObjectPtr range2) { + } + + /** ++ * xmlXPtrNewRangeInternal: ++ * @start: the starting node ++ * @startindex: the start index ++ * @end: the ending point ++ * @endindex: the ending index ++ * ++ * Internal function to create a new xmlXPathObjectPtr of type range ++ * ++ * Returns the newly created object. ++ */ ++static xmlXPathObjectPtr ++xmlXPtrNewRangeInternal(xmlNodePtr start, int startindex, ++ xmlNodePtr end, int endindex) { ++ xmlXPathObjectPtr ret; ++ ++ /* ++ * Namespace nodes must be copied (see xmlXPathNodeSetDupNs). ++ * Disallow them for now. ++ */ ++ if ((start != NULL) && (start->type == XML_NAMESPACE_DECL)) ++ return(NULL); ++ if ((end != NULL) && (end->type == XML_NAMESPACE_DECL)) ++ return(NULL); ++ ++ ret = (xmlXPathObjectPtr) xmlMalloc(sizeof(xmlXPathObject)); ++ if (ret == NULL) { ++ xmlXPtrErrMemory("allocating range"); ++ return(NULL); ++ } ++ memset(ret, 0, sizeof(xmlXPathObject)); ++ ret->type = XPATH_RANGE; ++ ret->user = start; ++ ret->index = startindex; ++ ret->user2 = end; ++ ret->index2 = endindex; ++ return(ret); ++} ++ ++/** + * xmlXPtrNewRange: + * @start: the starting node + * @startindex: the start index +@@ -344,17 +383,7 @@ xmlXPtrNewRange(xmlNodePtr start, int startindex, + if (endindex < 0) + return(NULL); + +- ret = (xmlXPathObjectPtr) xmlMalloc(sizeof(xmlXPathObject)); +- if (ret == NULL) { +- xmlXPtrErrMemory("allocating range"); +- return(NULL); +- } +- memset(ret, 0 , (size_t) sizeof(xmlXPathObject)); +- ret->type = XPATH_RANGE; +- ret->user = start; +- ret->index = startindex; +- ret->user2 = end; +- ret->index2 = endindex; ++ ret = xmlXPtrNewRangeInternal(start, startindex, end, endindex); + xmlXPtrRangeCheckOrder(ret); + return(ret); + } +@@ -381,17 +410,8 @@ xmlXPtrNewRangePoints(xmlXPathObjectPtr start, xmlXPathObjectPtr end) { + if (end->type != XPATH_POINT) + return(NULL); + +- ret = (xmlXPathObjectPtr) xmlMalloc(sizeof(xmlXPathObject)); +- if (ret == NULL) { +- xmlXPtrErrMemory("allocating range"); +- return(NULL); +- } +- memset(ret, 0 , (size_t) sizeof(xmlXPathObject)); +- ret->type = XPATH_RANGE; +- ret->user = start->user; +- ret->index = start->index; +- ret->user2 = end->user; +- ret->index2 = end->index; ++ ret = xmlXPtrNewRangeInternal(start->user, start->index, end->user, ++ end->index); + xmlXPtrRangeCheckOrder(ret); + return(ret); + } +@@ -416,17 +436,7 @@ xmlXPtrNewRangePointNode(xmlXPathObjectPtr start, xmlNodePtr end) { + if (start->type != XPATH_POINT) + return(NULL); + +- ret = (xmlXPathObjectPtr) xmlMalloc(sizeof(xmlXPathObject)); +- if (ret == NULL) { +- xmlXPtrErrMemory("allocating range"); +- return(NULL); +- } +- memset(ret, 0 , (size_t) sizeof(xmlXPathObject)); +- ret->type = XPATH_RANGE; +- ret->user = start->user; +- ret->index = start->index; +- ret->user2 = end; +- ret->index2 = -1; ++ ret = xmlXPtrNewRangeInternal(start->user, start->index, end, -1); + xmlXPtrRangeCheckOrder(ret); + return(ret); + } +@@ -453,17 +463,7 @@ xmlXPtrNewRangeNodePoint(xmlNodePtr start, xmlXPathObjectPtr end) { + if (end->type != XPATH_POINT) + return(NULL); + +- ret = (xmlXPathObjectPtr) xmlMalloc(sizeof(xmlXPathObject)); +- if (ret == NULL) { +- xmlXPtrErrMemory("allocating range"); +- return(NULL); +- } +- memset(ret, 0 , (size_t) sizeof(xmlXPathObject)); +- ret->type = XPATH_RANGE; +- ret->user = start; +- ret->index = -1; +- ret->user2 = end->user; +- ret->index2 = end->index; ++ ret = xmlXPtrNewRangeInternal(start, -1, end->user, end->index); + xmlXPtrRangeCheckOrder(ret); + return(ret); + } +@@ -486,17 +486,7 @@ xmlXPtrNewRangeNodes(xmlNodePtr start, xmlNodePtr end) { + if (end == NULL) + return(NULL); + +- ret = (xmlXPathObjectPtr) xmlMalloc(sizeof(xmlXPathObject)); +- if (ret == NULL) { +- xmlXPtrErrMemory("allocating range"); +- return(NULL); +- } +- memset(ret, 0 , (size_t) sizeof(xmlXPathObject)); +- ret->type = XPATH_RANGE; +- ret->user = start; +- ret->index = -1; +- ret->user2 = end; +- ret->index2 = -1; ++ ret = xmlXPtrNewRangeInternal(start, -1, end, -1); + xmlXPtrRangeCheckOrder(ret); + return(ret); + } +@@ -516,17 +506,7 @@ xmlXPtrNewCollapsedRange(xmlNodePtr start) { + if (start == NULL) + return(NULL); + +- ret = (xmlXPathObjectPtr) xmlMalloc(sizeof(xmlXPathObject)); +- if (ret == NULL) { +- xmlXPtrErrMemory("allocating range"); +- return(NULL); +- } +- memset(ret, 0 , (size_t) sizeof(xmlXPathObject)); +- ret->type = XPATH_RANGE; +- ret->user = start; +- ret->index = -1; +- ret->user2 = NULL; +- ret->index2 = -1; ++ ret = xmlXPtrNewRangeInternal(start, -1, NULL, -1); + return(ret); + } + +@@ -541,6 +521,8 @@ xmlXPtrNewCollapsedRange(xmlNodePtr start) { + */ + xmlXPathObjectPtr + xmlXPtrNewRangeNodeObject(xmlNodePtr start, xmlXPathObjectPtr end) { ++ xmlNodePtr endNode; ++ int endIndex; + xmlXPathObjectPtr ret; + + if (start == NULL) +@@ -549,7 +531,12 @@ xmlXPtrNewRangeNodeObject(xmlNodePtr start, xmlXPathObjectPtr end) { + return(NULL); + switch (end->type) { + case XPATH_POINT: ++ endNode = end->user; ++ endIndex = end->index; ++ break; + case XPATH_RANGE: ++ endNode = end->user2; ++ endIndex = end->index2; + break; + case XPATH_NODESET: + /* +@@ -557,39 +544,15 @@ xmlXPtrNewRangeNodeObject(xmlNodePtr start, xmlXPathObjectPtr end) { + */ + if (end->nodesetval->nodeNr <= 0) + return(NULL); ++ endNode = end->nodesetval->nodeTab[end->nodesetval->nodeNr - 1]; ++ endIndex = -1; + break; + default: + /* TODO */ + return(NULL); + } + +- ret = (xmlXPathObjectPtr) xmlMalloc(sizeof(xmlXPathObject)); +- if (ret == NULL) { +- xmlXPtrErrMemory("allocating range"); +- return(NULL); +- } +- memset(ret, 0 , (size_t) sizeof(xmlXPathObject)); +- ret->type = XPATH_RANGE; +- ret->user = start; +- ret->index = -1; +- switch (end->type) { +- case XPATH_POINT: +- ret->user2 = end->user; +- ret->index2 = end->index; +- break; +- case XPATH_RANGE: +- ret->user2 = end->user2; +- ret->index2 = end->index2; +- break; +- case XPATH_NODESET: { +- ret->user2 = end->nodesetval->nodeTab[end->nodesetval->nodeNr - 1]; +- ret->index2 = -1; +- break; +- } +- default: +- STRANGE +- return(NULL); +- } ++ ret = xmlXPtrNewRangeInternal(start, -1, endNode, endIndex); + xmlXPtrRangeCheckOrder(ret); + return(ret); + } +-- +cgit v0.12 + diff --git a/srcpkgs/libxml2/patches/CVE-2016-5131.patch b/srcpkgs/libxml2/patches/CVE-2016-5131.patch new file mode 100644 index 00000000000..a96d021dada --- /dev/null +++ b/srcpkgs/libxml2/patches/CVE-2016-5131.patch @@ -0,0 +1,208 @@ +From a005199330b86dada19d162cae15ef9bdcb6baa8 Mon Sep 17 00:00:00 2001 +From: Nick Wellnhofer +Date: Tue, 28 Jun 2016 14:19:58 +0200 +Subject: Fix comparison with root node in xmlXPathCmpNodes + +This change has already been made in xmlXPathCmpNodesExt but not in +xmlXPathCmpNodes. +--- + xpath.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/xpath.c b/xpath.c +index 751665b..d992841 100644 +--- xpath.c ++++ xpath.c +@@ -3342,13 +3342,13 @@ xmlXPathCmpNodes(xmlNodePtr node1, xmlNodePtr node2) { + * compute depth to root + */ + for (depth2 = 0, cur = node2;cur->parent != NULL;cur = cur->parent) { +- if (cur == node1) ++ if (cur->parent == node1) + return(1); + depth2++; + } + root = cur; + for (depth1 = 0, cur = node1;cur->parent != NULL;cur = cur->parent) { +- if (cur == node2) ++ if (cur->parent == node2) + return(-1); + depth1++; + } +-- +cgit v0.12 + +From 9ab01a277d71f54d3143c2cf333c5c2e9aaedd9e Mon Sep 17 00:00:00 2001 +From: Nick Wellnhofer +Date: Tue, 28 Jun 2016 14:22:23 +0200 +Subject: Fix XPointer paths beginning with range-to + +The old code would invoke the broken xmlXPtrRangeToFunction. range-to +isn't really a function but a special kind of location step. Remove +this function and always handle range-to in the XPath code. + +The old xmlXPtrRangeToFunction could also be abused to trigger a +use-after-free error with the potential for remote code execution. + +Found with afl-fuzz. + +Fixes CVE-2016-5131. +--- + result/XPath/xptr/vidbase | 13 ++++++++ + test/XPath/xptr/vidbase | 1 + + xpath.c | 7 ++++- + xpointer.c | 76 ++++------------------------------------------- + 4 files changed, 26 insertions(+), 71 deletions(-) + +diff --git a/result/XPath/xptr/vidbase b/result/XPath/xptr/vidbase +index 8b9e92d..f19193e 100644 +--- result/XPath/xptr/vidbase ++++ result/XPath/xptr/vidbase +@@ -17,3 +17,16 @@ Object is a Location Set: + To node + ELEMENT p + ++ ++======================== ++Expression: xpointer(range-to(id('chapter2'))) ++Object is a Location Set: ++1 : Object is a range : ++ From node ++ / ++ To node ++ ELEMENT chapter ++ ATTRIBUTE id ++ TEXT ++ content=chapter2 ++ +diff --git a/test/XPath/xptr/vidbase b/test/XPath/xptr/vidbase +index b146383..884b106 100644 +--- test/XPath/xptr/vidbase ++++ test/XPath/xptr/vidbase +@@ -1,2 +1,3 @@ + xpointer(id('chapter1')/p) + xpointer(id('chapter1')/p[1]/range-to(following-sibling::p[2])) ++xpointer(range-to(id('chapter2'))) +diff --git a/xpath.c b/xpath.c +index d992841..5a01b1b 100644 +--- xpath.c ++++ xpath.c +@@ -10691,13 +10691,18 @@ xmlXPathCompPathExpr(xmlXPathParserContextPtr ctxt) { + lc = 1; + break; + } else if ((NXT(len) == '(')) { +- /* Note Type or Function */ ++ /* Node Type or Function */ + if (xmlXPathIsNodeType(name)) { + #ifdef DEBUG_STEP + xmlGenericError(xmlGenericErrorContext, + "PathExpr: Type search\n"); + #endif + lc = 1; ++#ifdef LIBXML_XPTR_ENABLED ++ } else if (ctxt->xptr && ++ xmlStrEqual(name, BAD_CAST "range-to")) { ++ lc = 1; ++#endif + } else { + #ifdef DEBUG_STEP + xmlGenericError(xmlGenericErrorContext, +diff --git a/xpointer.c b/xpointer.c +index 676c510..d74174a 100644 +--- xpointer.c ++++ xpointer.c +@@ -1332,8 +1332,6 @@ xmlXPtrNewContext(xmlDocPtr doc, xmlNodePtr here, xmlNodePtr origin) { + ret->here = here; + ret->origin = origin; + +- xmlXPathRegisterFunc(ret, (xmlChar *)"range-to", +- xmlXPtrRangeToFunction); + xmlXPathRegisterFunc(ret, (xmlChar *)"range", + xmlXPtrRangeFunction); + xmlXPathRegisterFunc(ret, (xmlChar *)"range-inside", +@@ -2243,76 +2241,14 @@ xmlXPtrRangeInsideFunction(xmlXPathParserContextPtr ctxt, int nargs) { + * @nargs: the number of args + * + * Implement the range-to() XPointer function ++ * ++ * Obsolete. range-to is not a real function but a special type of location ++ * step which is handled in xpath.c. + */ + void +-xmlXPtrRangeToFunction(xmlXPathParserContextPtr ctxt, int nargs) { +- xmlXPathObjectPtr range; +- const xmlChar *cur; +- xmlXPathObjectPtr res, obj; +- xmlXPathObjectPtr tmp; +- xmlLocationSetPtr newset = NULL; +- xmlNodeSetPtr oldset; +- int i; +- +- if (ctxt == NULL) return; +- CHECK_ARITY(1); +- /* +- * Save the expression pointer since we will have to evaluate +- * it multiple times. Initialize the new set. +- */ +- CHECK_TYPE(XPATH_NODESET); +- obj = valuePop(ctxt); +- oldset = obj->nodesetval; +- ctxt->context->node = NULL; +- +- cur = ctxt->cur; +- newset = xmlXPtrLocationSetCreate(NULL); +- +- for (i = 0; i < oldset->nodeNr; i++) { +- ctxt->cur = cur; +- +- /* +- * Run the evaluation with a node list made of a single item +- * in the nodeset. +- */ +- ctxt->context->node = oldset->nodeTab[i]; +- tmp = xmlXPathNewNodeSet(ctxt->context->node); +- valuePush(ctxt, tmp); +- +- xmlXPathEvalExpr(ctxt); +- CHECK_ERROR; +- +- /* +- * The result of the evaluation need to be tested to +- * decided whether the filter succeeded or not +- */ +- res = valuePop(ctxt); +- range = xmlXPtrNewRangeNodeObject(oldset->nodeTab[i], res); +- if (range != NULL) { +- xmlXPtrLocationSetAdd(newset, range); +- } +- +- /* +- * Cleanup +- */ +- if (res != NULL) +- xmlXPathFreeObject(res); +- if (ctxt->value == tmp) { +- res = valuePop(ctxt); +- xmlXPathFreeObject(res); +- } +- +- ctxt->context->node = NULL; +- } +- +- /* +- * The result is used as the new evaluation set. +- */ +- xmlXPathFreeObject(obj); +- ctxt->context->node = NULL; +- ctxt->context->contextSize = -1; +- ctxt->context->proximityPosition = -1; +- valuePush(ctxt, xmlXPtrWrapLocationSet(newset)); ++xmlXPtrRangeToFunction(xmlXPathParserContextPtr ctxt, ++ int nargs ATTRIBUTE_UNUSED) { ++ XP_ERROR(XPATH_EXPR_ERROR); + } + + /** +-- +cgit v0.12 + diff --git a/srcpkgs/libxml2/patches/CVE-2017-0663.patch b/srcpkgs/libxml2/patches/CVE-2017-0663.patch new file mode 100644 index 00000000000..9a42539f68a --- /dev/null +++ b/srcpkgs/libxml2/patches/CVE-2017-0663.patch @@ -0,0 +1,43 @@ +From 92b9e8c8b3787068565a1820ba575d042f9eec66 Mon Sep 17 00:00:00 2001 +From: Nick Wellnhofer +Date: Tue, 6 Jun 2017 12:56:28 +0200 +Subject: Fix type confusion in xmlValidateOneNamespace + +Comment out code that casts xmlNsPtr to xmlAttrPtr. ID types on +namespace declarations make no practical sense anyway. + +Fixes bug 780228. + +Found with libFuzzer and ASan. +--- + valid.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/valid.c b/valid.c +index 8075d3a..c51ea29 100644 +--- valid.c ++++ valid.c +@@ -4627,6 +4627,12 @@ xmlNodePtr elem, const xmlChar *prefix, xmlNsPtr ns, const xmlChar *value) { + } + } + ++ /* ++ * Casting ns to xmlAttrPtr is wrong. We'd need separate functions ++ * xmlAddID and xmlAddRef for namespace declarations, but it makes ++ * no practical sense to use ID types anyway. ++ */ ++#if 0 + /* Validity Constraint: ID uniqueness */ + if (attrDecl->atype == XML_ATTRIBUTE_ID) { + if (xmlAddID(ctxt, doc, value, (xmlAttrPtr) ns) == NULL) +@@ -4638,6 +4644,7 @@ xmlNodePtr elem, const xmlChar *prefix, xmlNsPtr ns, const xmlChar *value) { + if (xmlAddRef(ctxt, doc, value, (xmlAttrPtr) ns) == NULL) + ret = 0; + } ++#endif + + /* Validity Constraint: Notation Attributes */ + if (attrDecl->atype == XML_ATTRIBUTE_NOTATION) { +-- +cgit v0.12 + diff --git a/srcpkgs/libxml2/patches/CVE-2017-7375.patch b/srcpkgs/libxml2/patches/CVE-2017-7375.patch new file mode 100644 index 00000000000..17c1167c33d --- /dev/null +++ b/srcpkgs/libxml2/patches/CVE-2017-7375.patch @@ -0,0 +1,35 @@ +From 90ccb58242866b0ba3edbef8fe44214a101c2b3e Mon Sep 17 00:00:00 2001 +From: Neel Mehta +Date: Fri, 7 Apr 2017 17:43:02 +0200 +Subject: Prevent unwanted external entity reference + +For https://bugzilla.gnome.org/show_bug.cgi?id=780691 + +* parser.c: add a specific check to avoid PE reference +--- + parser.c | 9 +++++++++ + 1 file changed, 9 insertions(+) + +diff --git a/parser.c b/parser.c +index 609a270..c2c812d 100644 +--- parser.c ++++ parser.c +@@ -8123,6 +8123,15 @@ xmlParsePEReference(xmlParserCtxtPtr ctxt) + if (xmlPushInput(ctxt, input) < 0) + return; + } else { ++ if ((entity->etype == XML_EXTERNAL_PARAMETER_ENTITY) && ++ ((ctxt->options & XML_PARSE_NOENT) == 0) && ++ ((ctxt->options & XML_PARSE_DTDVALID) == 0) && ++ ((ctxt->options & XML_PARSE_DTDLOAD) == 0) && ++ ((ctxt->options & XML_PARSE_DTDATTR) == 0) && ++ (ctxt->replaceEntities == 0) && ++ (ctxt->validate == 0)) ++ return; ++ + /* + * TODO !!! + * handle the extra spaces added before and after +-- +cgit v0.12 + diff --git a/srcpkgs/libxml2/patches/CVE-2017-7376.patch b/srcpkgs/libxml2/patches/CVE-2017-7376.patch new file mode 100644 index 00000000000..3375159e391 --- /dev/null +++ b/srcpkgs/libxml2/patches/CVE-2017-7376.patch @@ -0,0 +1,31 @@ +From 5dca9eea1bd4263bfa4d037ab2443de1cd730f7e Mon Sep 17 00:00:00 2001 +From: Daniel Veillard +Date: Fri, 7 Apr 2017 17:13:28 +0200 +Subject: Increase buffer space for port in HTTP redirect support + +For https://bugzilla.gnome.org/show_bug.cgi?id=780690 + +nanohttp.c: the code wrongly assumed a short int port value. +--- + nanohttp.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/nanohttp.c b/nanohttp.c +index e109ad7..373425d 100644 +--- nanohttp.c ++++ nanohttp.c +@@ -1423,9 +1423,9 @@ retry: + if (ctxt->port != 80) { + /* reserve space for ':xxxxx', incl. potential proxy */ + if (proxy) +- blen += 12; ++ blen += 17; + else +- blen += 6; ++ blen += 11; + } + bp = (char*)xmlMallocAtomic(blen); + if ( bp == NULL ) { +-- +cgit v0.12 + diff --git a/srcpkgs/libxml2/patches/CVE-2017-9047-CVE-2017-9048.patch b/srcpkgs/libxml2/patches/CVE-2017-9047-CVE-2017-9048.patch new file mode 100644 index 00000000000..412eebb5b38 --- /dev/null +++ b/srcpkgs/libxml2/patches/CVE-2017-9047-CVE-2017-9048.patch @@ -0,0 +1,116 @@ +From 932cc9896ab41475d4aa429c27d9afd175959d74 Mon Sep 17 00:00:00 2001 +From: Nick Wellnhofer +Date: Sat, 3 Jun 2017 02:01:29 +0200 +Subject: Fix buffer size checks in xmlSnprintfElementContent +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +xmlSnprintfElementContent failed to correctly check the available +buffer space in two locations. + +Fixes bug 781333 (CVE-2017-9047) and bug 781701 (CVE-2017-9048). + +Thanks to Marcel Böhme and Thuan Pham for the report. +--- + result/valid/781333.xml | 5 +++++ + result/valid/781333.xml.err | 3 +++ + result/valid/781333.xml.err.rdr | 6 ++++++ + test/valid/781333.xml | 4 ++++ + valid.c | 20 +++++++++++--------- + 5 files changed, 29 insertions(+), 9 deletions(-) + create mode 100644 result/valid/781333.xml + create mode 100644 result/valid/781333.xml.err + create mode 100644 result/valid/781333.xml.err.rdr + create mode 100644 test/valid/781333.xml + +diff --git a/result/valid/781333.xml b/result/valid/781333.xml +new file mode 100644 +index 0000000..45dc451 +--- /dev/null ++++ result/valid/781333.xml +@@ -0,0 +1,5 @@ ++ ++ ++]> ++ +diff --git a/result/valid/781333.xml.err b/result/valid/781333.xml.err +new file mode 100644 +index 0000000..b401b49 +--- /dev/null ++++ result/valid/781333.xml.err +@@ -0,0 +1,3 @@ ++./test/valid/781333.xml:4: element a: validity error : Element a content does not follow the DTD, expecting ( ..., got ++ ++ ^ +diff --git a/result/valid/781333.xml.err.rdr b/result/valid/781333.xml.err.rdr +new file mode 100644 +index 0000000..5ff5699 +--- /dev/null ++++ result/valid/781333.xml.err.rdr +@@ -0,0 +1,6 @@ ++./test/valid/781333.xml:4: element a: validity error : Element a content does not follow the DTD, expecting ( ..., got ++ ++ ^ ++./test/valid/781333.xml:5: element a: validity error : Element a content does not follow the DTD, Expecting more child ++ ++^ +diff --git a/test/valid/781333.xml b/test/valid/781333.xml +new file mode 100644 +index 0000000..b29e5a6 +--- /dev/null ++++ test/valid/781333.xml +@@ -0,0 +1,4 @@ ++ ++]> ++ +diff --git a/valid.c b/valid.c +index 19f84b8..9b2df56 100644 +--- valid.c ++++ valid.c +@@ -1262,22 +1262,23 @@ xmlSnprintfElementContent(char *buf, int size, xmlElementContentPtr content, int + case XML_ELEMENT_CONTENT_PCDATA: + strcat(buf, "#PCDATA"); + break; +- case XML_ELEMENT_CONTENT_ELEMENT: ++ case XML_ELEMENT_CONTENT_ELEMENT: { ++ int qnameLen = xmlStrlen(content->name); ++ ++ if (content->prefix != NULL) ++ qnameLen += xmlStrlen(content->prefix) + 1; ++ if (size - len < qnameLen + 10) { ++ strcat(buf, " ..."); ++ return; ++ } + if (content->prefix != NULL) { +- if (size - len < xmlStrlen(content->prefix) + 10) { +- strcat(buf, " ..."); +- return; +- } + strcat(buf, (char *) content->prefix); + strcat(buf, ":"); + } +- if (size - len < xmlStrlen(content->name) + 10) { +- strcat(buf, " ..."); +- return; +- } + if (content->name != NULL) + strcat(buf, (char *) content->name); + break; ++ } + case XML_ELEMENT_CONTENT_SEQ: + if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || + (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) +@@ -1319,6 +1320,7 @@ xmlSnprintfElementContent(char *buf, int size, xmlElementContentPtr content, int + xmlSnprintfElementContent(buf, size, content->c2, 0); + break; + } ++ if (size - strlen(buf) <= 2) return; + if (englob) + strcat(buf, ")"); + switch (content->ocur) { +-- +cgit v0.12 + diff --git a/srcpkgs/libxml2/patches/CVE-2017-9049-CVE-2017-9050.patch b/srcpkgs/libxml2/patches/CVE-2017-9049-CVE-2017-9050.patch new file mode 100644 index 00000000000..cbbc036fdd4 --- /dev/null +++ b/srcpkgs/libxml2/patches/CVE-2017-9049-CVE-2017-9050.patch @@ -0,0 +1,316 @@ +From e26630548e7d138d2c560844c43820b6767251e3 Mon Sep 17 00:00:00 2001 +From: Nick Wellnhofer +Date: Mon, 5 Jun 2017 15:37:17 +0200 +Subject: Fix handling of parameter-entity references +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +There were two bugs where parameter-entity references could lead to an +unexpected change of the input buffer in xmlParseNameComplex and +xmlDictLookup being called with an invalid pointer. + +Percent sign in DTD Names +========================= + +The NEXTL macro used to call xmlParserHandlePEReference. When parsing +"complex" names inside the DTD, this could result in entity expansion +which created a new input buffer. The fix is to simply remove the call +to xmlParserHandlePEReference from the NEXTL macro. This is safe because +no users of the macro require expansion of parameter entities. + +- xmlParseNameComplex +- xmlParseNCNameComplex +- xmlParseNmtoken + +The percent sign is not allowed in names, which are grammatical tokens. + +- xmlParseEntityValue + +Parameter-entity references in entity values are expanded but this +happens in a separate step in this function. + +- xmlParseSystemLiteral + +Parameter-entity references are ignored in the system literal. + +- xmlParseAttValueComplex +- xmlParseCharDataComplex +- xmlParseCommentComplex +- xmlParsePI +- xmlParseCDSect + +Parameter-entity references are ignored outside the DTD. + +- xmlLoadEntityContent + +This function is only called from xmlStringLenDecodeEntities and +entities are replaced in a separate step immediately after the function +call. + +This bug could also be triggered with an internal subset and double +entity expansion. + +This fixes bug 766956 initially reported by Wei Lei and independently by +Chromium's ClusterFuzz, Hanno Böck, and Marco Grassi. Thanks to everyone +involved. + +xmlParseNameComplex with XML_PARSE_OLD10 +======================================== + +When parsing Names inside an expanded parameter entity with the +XML_PARSE_OLD10 option, xmlParseNameComplex would call xmlGROW via the +GROW macro if the input buffer was exhausted. At the end of the +parameter entity's replacement text, this function would then call +xmlPopInput which invalidated the input buffer. + +There should be no need to invoke GROW in this situation because the +buffer is grown periodically every XML_PARSER_CHUNK_SIZE characters and, +at least for UTF-8, in xmlCurrentChar. This also matches the code path +executed when XML_PARSE_OLD10 is not set. + +This fixes bugs 781205 (CVE-2017-9049) and 781361 (CVE-2017-9050). +Thanks to Marcel Böhme and Thuan Pham for the report. + +Additional hardening +==================== + +A separate check was added in xmlParseNameComplex to validate the +buffer size. +--- + Makefile.am | 18 ++++++++++++++++++ + parser.c | 18 ++++++++++-------- + result/errors10/781205.xml | 0 + result/errors10/781205.xml.err | 21 +++++++++++++++++++++ + result/errors10/781361.xml | 0 + result/errors10/781361.xml.err | 13 +++++++++++++ + result/valid/766956.xml | 0 + result/valid/766956.xml.err | 9 +++++++++ + result/valid/766956.xml.err.rdr | 10 ++++++++++ + runtest.c | 3 +++ + test/errors10/781205.xml | 3 +++ + test/errors10/781361.xml | 3 +++ + test/valid/766956.xml | 2 ++ + test/valid/dtds/766956.dtd | 2 ++ + 14 files changed, 94 insertions(+), 8 deletions(-) + create mode 100644 result/errors10/781205.xml + create mode 100644 result/errors10/781205.xml.err + create mode 100644 result/errors10/781361.xml + create mode 100644 result/errors10/781361.xml.err + create mode 100644 result/valid/766956.xml + create mode 100644 result/valid/766956.xml.err + create mode 100644 result/valid/766956.xml.err.rdr + create mode 100644 test/errors10/781205.xml + create mode 100644 test/errors10/781361.xml + create mode 100644 test/valid/766956.xml + create mode 100644 test/valid/dtds/766956.dtd + +diff --git a/Makefile.am b/Makefile.am +index 6fc8ffa..10e716a 100644 +--- Makefile.am ++++ Makefile.am +@@ -427,6 +427,24 @@ Errtests : xmllint$(EXEEXT) + if [ -n "$$log" ] ; then echo $$name result ; echo "$$log" ; fi ; \ + rm result.$$name error.$$name ; \ + fi ; fi ; done) ++ @echo "## Error cases regression tests (old 1.0)" ++ -@(for i in $(srcdir)/test/errors10/*.xml ; do \ ++ name=`basename $$i`; \ ++ if [ ! -d $$i ] ; then \ ++ if [ ! -f $(srcdir)/result/errors10/$$name ] ; then \ ++ echo New test file $$name ; \ ++ $(CHECKER) $(top_builddir)/xmllint --oldxml10 $$i \ ++ 2> $(srcdir)/result/errors10/$$name.err \ ++ > $(srcdir)/result/errors10/$$name ; \ ++ grep "MORY ALLO" .memdump | grep -v "MEMORY ALLOCATED : 0"; \ ++ else \ ++ log=`$(CHECKER) $(top_builddir)/xmllint --oldxml10 $$i 2> error.$$name > result.$$name ; \ ++ grep "MORY ALLO" .memdump | grep -v "MEMORY ALLOCATED : 0"; \ ++ diff $(srcdir)/result/errors10/$$name result.$$name ; \ ++ diff $(srcdir)/result/errors10/$$name.err error.$$name` ; \ ++ if [ -n "$$log" ] ; then echo $$name result ; echo "$$log" ; fi ; \ ++ rm result.$$name error.$$name ; \ ++ fi ; fi ; done) + @echo "## Error cases stream regression tests" + -@(for i in $(srcdir)/test/errors/*.xml ; do \ + name=`basename $$i`; \ +diff --git a/parser.c b/parser.c +index df2efa5..a175ac4 100644 +--- parser.c ++++ parser.c +@@ -2121,7 +2121,6 @@ static void xmlGROW (xmlParserCtxtPtr ctxt) { + ctxt->input->line++; ctxt->input->col = 1; \ + } else ctxt->input->col++; \ + ctxt->input->cur += l; \ +- if (*ctxt->input->cur == '%') xmlParserHandlePEReference(ctxt); \ + } while (0) + + #define CUR_CHAR(l) xmlCurrentChar(ctxt, &l) +@@ -3412,13 +3411,6 @@ xmlParseNameComplex(xmlParserCtxtPtr ctxt) { + len += l; + NEXTL(l); + c = CUR_CHAR(l); +- if (c == 0) { +- count = 0; +- GROW; +- if (ctxt->instate == XML_PARSER_EOF) +- return(NULL); +- c = CUR_CHAR(l); +- } + } + } + if ((len > XML_MAX_NAME_LENGTH) && +@@ -3426,6 +3418,16 @@ xmlParseNameComplex(xmlParserCtxtPtr ctxt) { + xmlFatalErr(ctxt, XML_ERR_NAME_TOO_LONG, "Name"); + return(NULL); + } ++ if (ctxt->input->cur - ctxt->input->base < len) { ++ /* ++ * There were a couple of bugs where PERefs lead to to a change ++ * of the buffer. Check the buffer size to avoid passing an invalid ++ * pointer to xmlDictLookup. ++ */ ++ xmlFatalErr(ctxt, XML_ERR_INTERNAL_ERROR, ++ "unexpected change of input buffer"); ++ return (NULL); ++ } + if ((*ctxt->input->cur == '\n') && (ctxt->input->cur[-1] == '\r')) + return(xmlDictLookup(ctxt->dict, ctxt->input->cur - (len + 1), len)); + return(xmlDictLookup(ctxt->dict, ctxt->input->cur - len, len)); +diff --git a/result/errors10/781205.xml b/result/errors10/781205.xml +new file mode 100644 +index 0000000..e69de29 +diff --git a/result/errors10/781205.xml.err b/result/errors10/781205.xml.err +new file mode 100644 +index 0000000..da15c3f +--- /dev/null ++++ result/errors10/781205.xml.err +@@ -0,0 +1,21 @@ ++Entity: line 1: parser error : internal error: xmlParseInternalSubset: error detected in Markup declaration ++ ++ %a; ++ ^ ++Entity: line 1: ++<:0000 ++^ ++Entity: line 1: parser error : DOCTYPE improperly terminated ++ %a; ++ ^ ++Entity: line 1: ++<:0000 ++^ ++namespace error : Failed to parse QName ':0000' ++ %a; ++ ^ ++<:0000 ++ ^ ++./test/errors10/781205.xml:4: parser error : Couldn't find end of Start Tag :0000 line 1 ++ ++^ +diff --git a/result/errors10/781361.xml b/result/errors10/781361.xml +new file mode 100644 +index 0000000..e69de29 +diff --git a/result/errors10/781361.xml.err b/result/errors10/781361.xml.err +new file mode 100644 +index 0000000..655f41a +--- /dev/null ++++ result/errors10/781361.xml.err +@@ -0,0 +1,13 @@ ++./test/errors10/781361.xml:4: parser error : xmlParseElementDecl: 'EMPTY', 'ANY' or '(' expected ++ ++^ ++./test/errors10/781361.xml:4: parser error : internal error: xmlParseInternalSubset: error detected in Markup declaration ++ ++ ++^ ++./test/errors10/781361.xml:4: parser error : DOCTYPE improperly terminated ++ ++^ ++./test/errors10/781361.xml:4: parser error : Start tag expected, '<' not found ++ ++^ +diff --git a/result/valid/766956.xml b/result/valid/766956.xml +new file mode 100644 +index 0000000..e69de29 +diff --git a/result/valid/766956.xml.err b/result/valid/766956.xml.err +new file mode 100644 +index 0000000..34b1dae +--- /dev/null ++++ result/valid/766956.xml.err +@@ -0,0 +1,9 @@ ++test/valid/dtds/766956.dtd:2: parser error : PEReference: expecting ';' ++%ä%ent; ++ ^ ++Entity: line 1: parser error : Content error in the external subset ++ %ent; ++ ^ ++Entity: line 1: ++value ++^ +diff --git a/result/valid/766956.xml.err.rdr b/result/valid/766956.xml.err.rdr +new file mode 100644 +index 0000000..7760346 +--- /dev/null ++++ result/valid/766956.xml.err.rdr +@@ -0,0 +1,10 @@ ++test/valid/dtds/766956.dtd:2: parser error : PEReference: expecting ';' ++%ä%ent; ++ ^ ++Entity: line 1: parser error : Content error in the external subset ++ %ent; ++ ^ ++Entity: line 1: ++value ++^ ++./test/valid/766956.xml : failed to parse +diff --git a/runtest.c b/runtest.c +index b2ce693..378b38e 100644 +--- runtest.c ++++ runtest.c +@@ -4214,6 +4214,9 @@ testDesc testDescriptions[] = { + { "Error cases regression tests", + errParseTest, "./test/errors/*.xml", "result/errors/", "", ".err", + 0 }, ++ { "Error cases regression tests (old 1.0)", ++ errParseTest, "./test/errors10/*.xml", "result/errors10/", "", ".err", ++ XML_PARSE_OLD10 }, + #ifdef LIBXML_READER_ENABLED + { "Error cases stream regression tests", + streamParseTest, "./test/errors/*.xml", "result/errors/", NULL, ".str", +diff --git a/test/errors10/781205.xml b/test/errors10/781205.xml +new file mode 100644 +index 0000000..d9e9e83 +--- /dev/null ++++ test/errors10/781205.xml +@@ -0,0 +1,3 @@ ++ ++ %a; +diff --git a/test/errors10/781361.xml b/test/errors10/781361.xml +new file mode 100644 +index 0000000..67476bc +--- /dev/null ++++ test/errors10/781361.xml +@@ -0,0 +1,3 @@ ++ ++ %elem; +diff --git a/test/valid/766956.xml b/test/valid/766956.xml +new file mode 100644 +index 0000000..19a95a0 +--- /dev/null ++++ test/valid/766956.xml +@@ -0,0 +1,2 @@ ++ ++ +diff --git a/test/valid/dtds/766956.dtd b/test/valid/dtds/766956.dtd +new file mode 100644 +index 0000000..dddde68 +--- /dev/null ++++ test/valid/dtds/766956.dtd +@@ -0,0 +1,2 @@ ++ ++%ä%ent; +-- +cgit v0.12 + diff --git a/srcpkgs/libxml2/template b/srcpkgs/libxml2/template index c702b6a1217..7bfdf445a7a 100644 --- a/srcpkgs/libxml2/template +++ b/srcpkgs/libxml2/template @@ -1,7 +1,7 @@ # Template build file for 'libxml2'. pkgname=libxml2 version=2.9.4 -revision=2 +revision=3 build_style=gnu-configure configure_args="--disable-static --with-threads --with-history" hostmakedepends="automake libtool gettext-devel pkg-config python-devel"