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-rw-r--r--meta/recipes-core/libxml/libxml2/CVE-2019-20388.patch37
1 files changed, 37 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 @@
1From 7ffcd44d7e6c46704f8af0321d9314cd26e0e18a Mon Sep 17 00:00:00 2001
2From: Zhipeng Xie <xiezhipeng1@huawei.com>
3Date: Tue, 20 Aug 2019 16:33:06 +0800
4Subject: [PATCH] Fix memory leak in xmlSchemaValidateStream
5
6When ctxt->schema is NULL, xmlSchemaSAXPlug->xmlSchemaPreRun
7alloc a new schema for ctxt->schema and set vctxt->xsiAssemble
8to 1. Then xmlSchemaVStart->xmlSchemaPreRun initialize
9vctxt->xsiAssemble to 0 again which cause the alloced schema
10can not be freed anymore.
11
12Found with libFuzzer.
13
14Upstream-Status: Accepted [https://gitlab.gnome.org/GNOME/libxml2/commit/7ffcd44d7e6c46704f8af0321d9314cd26e0e18a]
15CVE: CVE-2019-20388
16
17Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
18Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
19---
20 xmlschemas.c | 1 -
21 1 file changed, 1 deletion(-)
22
23diff --git a/xmlschemas.c b/xmlschemas.c
24index 301c8449..39d92182 100644
25--- a/xmlschemas.c
26+++ b/xmlschemas.c
27@@ -28090,7 +28090,6 @@ xmlSchemaPreRun(xmlSchemaValidCtxtPtr vctxt) {
28 vctxt->nberrors = 0;
29 vctxt->depth = -1;
30 vctxt->skipDepth = -1;
31- vctxt->xsiAssemble = 0;
32 vctxt->hasKeyrefs = 0;
33 #ifdef ENABLE_IDC_NODE_TABLES_TEST
34 vctxt->createIDCNodeTables = 1;
35--
362.24.1
37