[kernel] r20094 - in dists/wheezy-security/linux/debian: . patches patches/bugfix/all
Dann Frazier
dannf at alioth.debian.org
Wed May 15 01:45:02 UTC 2013
Author: dannf
Date: Wed May 15 01:45:02 2013
New Revision: 20094
Log:
iucv: Fix missing msg_namelen update in iucv_sock_recvmsg() (CVE-2013-3229)
Added:
dists/wheezy-security/linux/debian/patches/bugfix/all/iucv-Fix-missing-msg_namelen-update-in-iucv_sock_rec.patch
Modified:
dists/wheezy-security/linux/debian/changelog
dists/wheezy-security/linux/debian/patches/series
Modified: dists/wheezy-security/linux/debian/changelog
==============================================================================
--- dists/wheezy-security/linux/debian/changelog Wed May 15 01:43:20 2013 (r20093)
+++ dists/wheezy-security/linux/debian/changelog Wed May 15 01:45:02 2013 (r20094)
@@ -14,6 +14,7 @@
* caif: Fix missing msg_namelen update in caif_seqpkt_recvmsg()
(CVE-2013-3227)
* irda: Fix missing msg_namelen update in irda_recvmsg_dgram() (CVE-2013-3228)
+ * iucv: Fix missing msg_namelen update in iucv_sock_recvmsg() (CVE-2013-3229)
-- dann frazier <dannf at debian.org> Tue, 14 May 2013 11:48:39 -0600
Added: dists/wheezy-security/linux/debian/patches/bugfix/all/iucv-Fix-missing-msg_namelen-update-in-iucv_sock_rec.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ dists/wheezy-security/linux/debian/patches/bugfix/all/iucv-Fix-missing-msg_namelen-update-in-iucv_sock_rec.patch Wed May 15 01:45:02 2013 (r20094)
@@ -0,0 +1,39 @@
+From 40c157ba78681c45cc62dabde406b44ca3c76c2b Mon Sep 17 00:00:00 2001
+From: Mathias Krause <minipli at googlemail.com>
+Date: Sun, 7 Apr 2013 01:51:54 +0000
+Subject: [PATCH] iucv: Fix missing msg_namelen update in iucv_sock_recvmsg()
+
+[ Upstream commit a5598bd9c087dc0efc250a5221e5d0e6f584ee88 ]
+
+The current code does not fill the msg_name member in case it is set.
+It also does not set the msg_namelen member to 0 and therefore makes
+net/socket.c leak the local, uninitialized sockaddr_storage variable
+to userland -- 128 bytes of kernel stack memory.
+
+Fix that by simply setting msg_namelen to 0 as obviously nobody cared
+about iucv_sock_recvmsg() not filling the msg_name in case it was set.
+
+Cc: Ursula Braun <ursula.braun at de.ibm.com>
+Signed-off-by: Mathias Krause <minipli at googlemail.com>
+Signed-off-by: David S. Miller <davem at davemloft.net>
+Signed-off-by: Ben Hutchings <ben at decadent.org.uk>
+---
+ net/iucv/af_iucv.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
+index cf98d62..e836140 100644
+--- a/net/iucv/af_iucv.c
++++ b/net/iucv/af_iucv.c
+@@ -1356,6 +1356,8 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
+ int blen;
+ int err = 0;
+
++ msg->msg_namelen = 0;
++
+ if ((sk->sk_state == IUCV_DISCONN || sk->sk_state == IUCV_SEVERED) &&
+ skb_queue_empty(&iucv->backlog_skb_q) &&
+ skb_queue_empty(&sk->sk_receive_queue) &&
+--
+1.7.10.4
+
Modified: dists/wheezy-security/linux/debian/patches/series
==============================================================================
--- dists/wheezy-security/linux/debian/patches/series Wed May 15 01:43:20 2013 (r20093)
+++ dists/wheezy-security/linux/debian/patches/series Wed May 15 01:45:02 2013 (r20094)
@@ -652,3 +652,4 @@
bugfix/all/Bluetooth-RFCOMM-Fix-missing-msg_namelen-update-in-r.patch
bugfix/all/caif-Fix-missing-msg_namelen-update-in-caif_seqpkt_r.patch
bugfix/all/irda-Fix-missing-msg_namelen-update-in-irda_recvmsg_.patch
+bugfix/all/iucv-Fix-missing-msg_namelen-update-in-iucv_sock_rec.patch
More information about the Kernel-svn-changes
mailing list