[oe-commits] Yue Tao : openssl: fix for CVE-2010-5298

[git at git.openembedded.org]

Module: openembedded-core.git
Branch: master-next
Commit: 751f81ed8dc488c500837aeb3eb41ebf3237e10b
URL:    http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=751f81ed8dc488c500837aeb3eb41ebf3237e10b

Author: Yue Tao <Yue.Tao at windriver.com>
Date:   Mon May 19 15:00:38 2014 +0800

openssl: fix for CVE-2010-5298

Race condition in the ssl3_read_bytes function in s3_pkt.c in OpenSSL
through 1.0.1g, when SSL_MODE_RELEASE_BUFFERS is enabled, allows remote
attackers to inject data across sessions or cause a denial of service
(use-after-free and parsing error) via an SSL connection in a
multithreaded environment.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-5298

Signed-off-by: Yue Tao <Yue.Tao at windriver.com>
Signed-off-by: Roy Li <rongqing.li at windriver.com>
Signed-off-by: Saul Wold <sgw at linux.intel.com>

---

 .../openssl-1.0.1e/openssl-CVE-2010-5298.patch     | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/meta/recipes-connectivity/openssl/openssl-1.0.1e/openssl-CVE-2010-5298.patch b/meta/recipes-connectivity/openssl/openssl-1.0.1e/openssl-CVE-2010-5298.patch
new file mode 100644
index 0000000..417a774
--- /dev/null
+++ b/meta/recipes-connectivity/openssl/openssl-1.0.1e/openssl-CVE-2010-5298.patch
@@ -0,0 +1,24 @@
+openssl fix for CVE-2010-5298
+
+Upstream-Status: Backport
+
+Race condition in the ssl3_read_bytes function in s3_pkt.c in OpenSSL
+through 1.0.1g, when SSL_MODE_RELEASE_BUFFERS is enabled, allows remote
+attackers to inject data across sessions or cause a denial of service
+(use-after-free and parsing error) via an SSL connection in a
+multithreaded environment.
+
+http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-5298
+
+Signed-off-by: Yue Tao <Yue.Tao at windriver.com>
+--- a/ssl/s3_pkt.c
++++ b/ssl/s3_pkt.c
+@@ -1013,7 +1013,7 @@ start:
+ 				{
+ 				s->rstate=SSL_ST_READ_HEADER;
+ 				rr->off=0;
+-				if (s->mode & SSL_MODE_RELEASE_BUFFERS)
++				if (s->mode & SSL_MODE_RELEASE_BUFFERS && s->s3->rbuf.left == 0)
+ 					ssl3_release_read_buffer(s);
+ 				}
+ 			}