diff options
| -rw-r--r-- | meta/recipes-core/libxml/libxml2/CVE-2019-20388.patch | 37 | ||||
| -rw-r--r-- | meta/recipes-core/libxml/libxml2_2.9.9.bb | 1 |
2 files changed, 38 insertions, 0 deletions
diff --git a/meta/recipes-core/libxml/libxml2/CVE-2019-20388.patch b/meta/recipes-core/libxml/libxml2/CVE-2019-20388.patch new file mode 100644 index 0000000000..4ee2d4fe62 --- /dev/null +++ b/meta/recipes-core/libxml/libxml2/CVE-2019-20388.patch @@ -0,0 +1,37 @@ +From 7ffcd44d7e6c46704f8af0321d9314cd26e0e18a Mon Sep 17 00:00:00 2001 +From: Zhipeng Xie <xiezhipeng1@huawei.com> +Date: Tue, 20 Aug 2019 16:33:06 +0800 +Subject: [PATCH] Fix memory leak in xmlSchemaValidateStream + +When ctxt->schema is NULL, xmlSchemaSAXPlug->xmlSchemaPreRun +alloc a new schema for ctxt->schema and set vctxt->xsiAssemble +to 1. Then xmlSchemaVStart->xmlSchemaPreRun initialize +vctxt->xsiAssemble to 0 again which cause the alloced schema +can not be freed anymore. + +Found with libFuzzer. + +Upstream-Status: Accepted [https://gitlab.gnome.org/GNOME/libxml2/commit/7ffcd44d7e6c46704f8af0321d9314cd26e0e18a] +CVE: CVE-2019-20388 + +Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com> +Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com> +--- + xmlschemas.c | 1 - + 1 file changed, 1 deletion(-) + +diff --git a/xmlschemas.c b/xmlschemas.c +index 301c8449..39d92182 100644 +--- a/xmlschemas.c ++++ b/xmlschemas.c +@@ -28090,7 +28090,6 @@ xmlSchemaPreRun(xmlSchemaValidCtxtPtr vctxt) { + vctxt->nberrors = 0; + vctxt->depth = -1; + vctxt->skipDepth = -1; +- vctxt->xsiAssemble = 0; + vctxt->hasKeyrefs = 0; + #ifdef ENABLE_IDC_NODE_TABLES_TEST + vctxt->createIDCNodeTables = 1; +-- +2.24.1 + diff --git a/meta/recipes-core/libxml/libxml2_2.9.9.bb b/meta/recipes-core/libxml/libxml2_2.9.9.bb index 5797dd6bee..1d898ab020 100644 --- a/meta/recipes-core/libxml/libxml2_2.9.9.bb +++ b/meta/recipes-core/libxml/libxml2_2.9.9.bb @@ -22,6 +22,7 @@ SRC_URI = "http://www.xmlsoft.org/sources/libxml2-${PV}.tar.gz;name=libtar \ file://fix-execution-of-ptests.patch \ file://Fix-CVE-2019-19956.patch \ file://CVE-2020-7595.patch \ + file://CVE-2019-20388.patch \ " SRC_URI[libtar.md5sum] = "c04a5a0a042eaa157e8e8c9eabe76bd6" |