diff options
Diffstat (limited to 'yocto-poky/meta/recipes-core/libxml/libxml2/0001-CVE-2015-7497-Avoid-an-heap-buffer-overflow-in-xmlDi.patch')
-rw-r--r-- | yocto-poky/meta/recipes-core/libxml/libxml2/0001-CVE-2015-7497-Avoid-an-heap-buffer-overflow-in-xmlDi.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/yocto-poky/meta/recipes-core/libxml/libxml2/0001-CVE-2015-7497-Avoid-an-heap-buffer-overflow-in-xmlDi.patch b/yocto-poky/meta/recipes-core/libxml/libxml2/0001-CVE-2015-7497-Avoid-an-heap-buffer-overflow-in-xmlDi.patch new file mode 100644 index 000000000..955c96195 --- /dev/null +++ b/yocto-poky/meta/recipes-core/libxml/libxml2/0001-CVE-2015-7497-Avoid-an-heap-buffer-overflow-in-xmlDi.patch @@ -0,0 +1,40 @@ +From 6360a31a84efe69d155ed96306b9a931a40beab9 Mon Sep 17 00:00:00 2001 +From: David Drysdale <drysdale@google.com> +Date: Fri, 20 Nov 2015 10:47:12 +0800 +Subject: [PATCH] CVE-2015-7497 Avoid an heap buffer overflow in + xmlDictComputeFastQKey + +For https://bugzilla.gnome.org/show_bug.cgi?id=756528 +It was possible to hit a negative offset in the name indexing +used to randomize the dictionary key generation +Reported and fix provided by David Drysdale @ Google + +Upstream-Status: Backport + +CVE-2015-7497 + +Signed-off-by: Armin Kuster <akuster@mvista.com> + +--- + dict.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/dict.c b/dict.c +index 5f71d55..8c8f931 100644 +--- a/dict.c ++++ b/dict.c +@@ -486,7 +486,10 @@ xmlDictComputeFastQKey(const xmlChar *prefix, int plen, + value += 30 * (*prefix); + + if (len > 10) { +- value += name[len - (plen + 1 + 1)]; ++ int offset = len - (plen + 1 + 1); ++ if (offset < 0) ++ offset = len - (10 + 1); ++ value += name[offset]; + len = 10; + if (plen > 10) + plen = 10; +-- +2.3.5 + |