[oe] [PATCH] python: fix for Security Advisory - python - CVE-2012-2135

[yanjun.zhu]

The utf-16 decoder in Python 3.1 through 3.3 does not update the
aligned_end variable after calling the unicode_decode_call_errorhandler
function, which allows remote attackers to obtain sensitive information
(process memory) or cause a denial of service (memory corruption and crash)
via unspecified vectors.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2135

Signed-off-by: yanjun.zhu <yanjun.zhu at windriver.com>
---
 .../python/python/python-2.7.2-CVE-2012-2135.patch |   12 ++++++++++++
 recipes-devtools/python/python_2.7.2.bbappend      |    1 +
 2 files changed, 13 insertions(+), 0 deletions(-)
 create mode 100644 recipes-devtools/python/python/python-2.7.2-CVE-2012-2135.patch

diff --git a/recipes-devtools/python/python/python-2.7.2-CVE-2012-2135.patch b/recipes-devtools/python/python/python-2.7.2-CVE-2012-2135.patch
new file mode 100644
index 0000000..b913097
--- /dev/null
+++ b/recipes-devtools/python/python/python-2.7.2-CVE-2012-2135.patch
@@ -0,0 +1,12 @@
+diff -urpN a/Objects/unicodeobject.c b/Objects/unicodeobject.c
+--- a/Objects/unicodeobject.c	2012-11-12 16:25:33.000000000 +0800
++++ b/Objects/unicodeobject.c	2012-11-12 16:26:22.000000000 +0800
+@@ -2568,7 +2568,7 @@ PyUnicode_DecodeUTF16Stateful(const char
+         }
+ 
+         /* UTF-16 code pair: */
+-        if (q >= e) {
++        if (e - q < 2) {
+             errmsg = "unexpected end of data";
+             startinpos = (((const char *)q)-2)-starts;
+             endinpos = ((const char *)e)-starts;
diff --git a/recipes-devtools/python/python_2.7.2.bbappend b/recipes-devtools/python/python_2.7.2.bbappend
index 87be410..64ada6c 100644
--- a/recipes-devtools/python/python_2.7.2.bbappend
+++ b/recipes-devtools/python/python_2.7.2.bbappend
@@ -5,5 +5,6 @@ SRC_URI += "\
     file://python-CVE-2010-3492.patch \
     file://python-2.7.2-CVE-2012-0845.patch \
     file://python-2.7.2-CVE-2012-1150.patch \
+    file://python-2.7.2-CVE-2012-2135.patch \
 "
 PRINC = "2"
-- 
1.6.3.1