diff options
| -rw-r--r-- | meta/recipes-core/libxml/libxml2/fix-CVE-2019-19956.patch | 38 | ||||
| -rw-r--r-- | meta/recipes-core/libxml/libxml2_2.9.8.bb | 1 |
2 files changed, 39 insertions, 0 deletions
diff --git a/meta/recipes-core/libxml/libxml2/fix-CVE-2019-19956.patch b/meta/recipes-core/libxml/libxml2/fix-CVE-2019-19956.patch new file mode 100644 index 0000000000..43c3589d2c --- /dev/null +++ b/meta/recipes-core/libxml/libxml2/fix-CVE-2019-19956.patch @@ -0,0 +1,38 @@ +From 3cd2b25ddb04740be2880cfd78d60038452228b1 Mon Sep 17 00:00:00 2001 +From: Zhipeng Xie <xiezhipeng1@huawei.com> +Date: Wed, 7 Aug 2019 17:39:17 +0800 +Subject: [PATCH] Fix memory leak in xmlParseBalancedChunkMemoryRecover + +When doc is NULL, namespace created in xmlTreeEnsureXMLDecl +is bind to newDoc->oldNs, in this case, set newDoc->oldNs to +NULL and free newDoc will cause a memory leak. + +Found with libFuzzer. + +Closes #82. + +Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/commit/5a02583c7e683896d84878bd90641d8d9b0d0549] +CVE: CVE-2019-19956 + +Signed-off-by: Rahul Chauhan <rahulk@mvista.com> +--- + parser.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/parser.c b/parser.c +index b7ecd65..491f5c9 100644 +--- a/parser.c ++++ b/parser.c +@@ -13899,7 +13899,8 @@ xmlParseBalancedChunkMemoryRecover(xmlDocPtr doc, xmlSAXHandlerPtr sax, + xmlFreeParserCtxt(ctxt); + newDoc->intSubset = NULL; + newDoc->extSubset = NULL; +- newDoc->oldNs = NULL; ++ if(doc != NULL) ++ newDoc->oldNs = NULL; + xmlFreeDoc(newDoc); + + return(ret); +-- +2.7.4 + diff --git a/meta/recipes-core/libxml/libxml2_2.9.8.bb b/meta/recipes-core/libxml/libxml2_2.9.8.bb index 62643bc764..67c2d4fafb 100644 --- a/meta/recipes-core/libxml/libxml2_2.9.8.bb +++ b/meta/recipes-core/libxml/libxml2_2.9.8.bb @@ -23,6 +23,7 @@ SRC_URI = "http://www.xmlsoft.org/sources/libxml2-${PV}.tar.gz;name=libtar \ file://fix-CVE-2017-8872.patch \ file://fix-CVE-2018-14404.patch \ file://0001-Fix-infinite-loop-in-LZMA-decompression.patch \ + file://fix-CVE-2019-19956.patch \ " SRC_URI[libtar.md5sum] = "b786e353e2aa1b872d70d5d1ca0c740d" |