1 files changed, 41 insertions, 0 deletions
diff --git a/patches/source/xorg-server/patch/xorg-server/0001-unchecked-malloc-may-allow-unauthed-client-to-crash-.patch b/patches/source/xorg-server/patch/xorg-server/0001-unchecked-malloc-may-allow-unauthed-client-to-crash-.patch
new file mode 100644
index 000000000..483bd74f9
--- /dev/null
+++ b/patches/source/xorg-server/patch/xorg-server/0001-unchecked-malloc-may-allow-unauthed-client-to-crash-.patch
@@ -0,0 +1,41 @@
+From 2ecba31ddb5f4b953a0a811fec7fb7470b668f13 Mon Sep 17 00:00:00 2001
+From: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date: Fri, 17 Jan 2014 18:54:03 -0800
+Subject: [PATCH 01/31] unchecked malloc may allow unauthed client to crash
+ Xserver [CVE-2014-8091]
+
+authdes_ezdecode() calls malloc() using a length provided by the
+connection handshake sent by a newly connected client in order
+to authenticate to the server, so should be treated as untrusted.
+
+It didn't check if malloc() failed before writing to the newly
+allocated buffer, so could lead to a server crash if the server
+fails to allocate memory (up to UINT16_MAX bytes, since the len
+field is a CARD16 in the X protocol).
+
+Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
+Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
+Signed-off-by: Fedora X Ninjas <x@fedoraproject.org>
+---
+ os/rpcauth.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/os/rpcauth.c b/os/rpcauth.c
+index bd219ac..c5bf787 100644
+--- a/os/rpcauth.c
++++ b/os/rpcauth.c
+@@ -66,6 +66,10 @@ authdes_ezdecode(const char *inmsg, int len)
+     SVCXPRT xprt;
+ 
+     temp_inmsg = malloc(len);
++    if (temp_inmsg == NULL) {
++        why = AUTH_FAILED; /* generic error, since there is no AUTH_BADALLOC */
++        return NULL;
++    }
+     memmove(temp_inmsg, inmsg, len);
+ 
+     memset((char *) &msg, 0, sizeof(msg));
+-- 
+1.9.3
+