vanhofen
3 years ago
3 changed files with 1 additions and 72 deletions
@ -1,36 +0,0 @@ |
|||||
From 0e1a49c8907645d2e155f0d89d4d9895ac5112b5 Mon Sep 17 00:00:00 2001 |
|
||||
From: Zhipeng Xie <xiezhipeng1@huawei.com> |
|
||||
Date: Thu, 12 Dec 2019 17:30:55 +0800 |
|
||||
Subject: [PATCH] Fix infinite loop in xmlStringLenDecodeEntities |
|
||||
|
|
||||
When ctxt->instate == XML_PARSER_EOF,xmlParseStringEntityRef |
|
||||
return NULL which cause a infinite loop in xmlStringLenDecodeEntities |
|
||||
|
|
||||
Found with libFuzzer. |
|
||||
|
|
||||
Fixes CVE-2020-7595: xmlStringLenDecodeEntities in parser.c in libxml2 |
|
||||
2.9.10 has an infinite loop in a certain end-of-file situation. |
|
||||
|
|
||||
Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com> |
|
||||
Signed-off-by: Peter Korsgaard <peter@korsgaard.com> |
|
||||
---
|
|
||||
parser.c | 3 ++- |
|
||||
1 file changed, 2 insertions(+), 1 deletion(-) |
|
||||
|
|
||||
diff --git a/parser.c b/parser.c
|
|
||||
index d1c31963..a34bb6cd 100644
|
|
||||
--- a/parser.c
|
|
||||
+++ b/parser.c
|
|
||||
@@ -2646,7 +2646,8 @@ xmlStringLenDecodeEntities(xmlParserCtxtPtr ctxt, const xmlChar *str, int len,
|
|
||||
else |
|
||||
c = 0; |
|
||||
while ((c != 0) && (c != end) && /* non input consuming loop */ |
|
||||
- (c != end2) && (c != end3)) {
|
|
||||
+ (c != end2) && (c != end3) &&
|
|
||||
+ (ctxt->instate != XML_PARSER_EOF)) {
|
|
||||
|
|
||||
if (c == 0) break; |
|
||||
if ((c == '&') && (str[1] == '#')) { |
|
||||
--
|
|
||||
2.20.1 |
|
||||
|
|
@ -1,35 +0,0 @@ |
|||||
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. |
|
||||
|
|
||||
Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com> |
|
||||
[import into Buildroot] |
|
||||
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.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 |
|
||||
|
|
Loading…
Reference in new issue