Bug 726788 (CVE-2011-4081) - VUL-0: CVE-2011-4081: kernel: crypto: ghash: null pointer deref if no key is set
Summary: VUL-0: CVE-2011-4081: kernel: crypto: ghash: null pointer deref if no key is set
Status: RESOLVED FIXED
Alias: CVE-2011-4081
Product: SUSE Security Incidents
Classification: Novell Products
Component: General (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Deadline: 2012-01-10
Assignee: Security Team bot
QA Contact: Security Team bot
URL:
Whiteboard: maint:running:44781:important maint:r...
Keywords:
Depends on:
Blocks:
 
Reported: 2011-10-27 09:14 UTC by Ludwig Nussel
Modified: 2017-04-04 17:58 UTC (History)
3 users (show)

See Also:
Found By: Other
Services Priority:
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Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Ludwig Nussel 2011-10-27 09:14:43 UTC 
Your friendly security team received the following report via oss-security.
Please respond ASAP.
The issue is public.

------------------------------------------------------------------------------
Date: Thu, 27 Oct 2011 17:10:07 +0800
From: Eugene Teo <eugene@redhat.com>
Subject: [oss-security] CVE request: kernel: crypto: ghash: null pointer deref if no key
 is set

Description from the commit: The ghash_update function passes a pointer
to gf128mul_4k_lle which will be NULL if ghash_setkey is not called or
if the most recent call to ghash_setkey failed to allocate memory.  This
causes an oops.  Fix this up by returning an error code in the null case.

This is trivially triggered from unprivileged userspace through the
AF_ALG interface by simply writing to the socket without setting a key.

The ghash_final function has a similar issue, but triggering it requires
a memory allocation failure in ghash_setkey _after_ at least one
successful call to ghash_update.

References:
https://bugzilla.redhat.com/show_bug.cgi?id=749475
https://secunia.com/advisories/46584/
https://bugs.gentoo.org/show_bug.cgi?id=388581

Upstream commit:
http://git.kernel.org/linus/7ed47b7d142ec99ad6880bbbec51e9f12b3af74c

+config CRYPTO_GHASH
was added in commit 2cdc6899, v2.6.32-rc1.

Thanks, Eugene
-- 
Eugene Teo / Red Hat Security Response Team
Comment 1 Ludwig Nussel 2011-10-27 09:39:44 UTC 
CVE-2011-4081
Comment 2 Michal Hocko 2011-11-03 13:06:53 UTC 
Doesn't affect any -TD branch
Comment 4 Swamp Workflow Management 2012-01-03 20:41:17 UTC 
The SWAMPID for this issue is 44781.
This issue was rated as important.
Please submit fixed packages until 2012-01-10.
Also create a patchinfo file using this link:
https://swamp.suse.de/webswamp/wf/44781
Comment 5 Swamp Workflow Management 2012-01-17 11:02:39 UTC 
Update released for: kernel-debug, kernel-debug-base, kernel-debug-base-debuginfo, kernel-debug-debuginfo, kernel-debug-debugsource, kernel-debug-devel, kernel-debug-devel-debuginfo, kernel-default, kernel-default-base, kernel-default-base-debuginfo, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-desktop, kernel-desktop-base, kernel-desktop-base-debuginfo, kernel-desktop-debuginfo, kernel-desktop-debugsource, kernel-desktop-devel, kernel-desktop-devel-debuginfo, kernel-devel, kernel-ec2, kernel-ec2-base, kernel-ec2-base-debuginfo, kernel-ec2-debuginfo, kernel-ec2-debugsource, kernel-ec2-devel, kernel-ec2-devel-debuginfo, kernel-ec2-extra, kernel-ec2-extra-debuginfo, kernel-pae, kernel-pae-base, kernel-pae-base-debuginfo, kernel-pae-debuginfo, kernel-pae-debugsource, kernel-pae-devel, kernel-pae-devel-debuginfo, kernel-source, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-base-debuginfo, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-vanilla, kernel-vanilla-base, kernel-vanilla-base-debuginfo, kernel-vanilla-debuginfo, kernel-vanilla-debugsource, kernel-vanilla-devel, kernel-vanilla-devel-debuginfo, kernel-vmi, kernel-vmi-base, kernel-vmi-base-debuginfo, kernel-vmi-debuginfo, kernel-vmi-debugsource, kernel-vmi-devel, kernel-vmi-devel-debuginfo, kernel-xen, kernel-xen-base, kernel-xen-base-debuginfo, kernel-xen-debuginfo, kernel-xen-debugsource, kernel-xen-devel, kernel-xen-devel-debuginfo, preload-kmp-default, preload-kmp-desktop
Products:
openSUSE 11.3 (debug, i586, x86_64)
Comment 6 Swamp Workflow Management 2012-01-17 11:05:59 UTC 
Update released for: kernel-debug, kernel-debug-base, kernel-debug-base-debuginfo, kernel-debug-debuginfo, kernel-debug-debugsource, kernel-debug-devel, kernel-debug-devel-debuginfo, kernel-default, kernel-default-base, kernel-default-base-debuginfo, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-desktop, kernel-desktop-base, kernel-desktop-base-debuginfo, kernel-desktop-debuginfo, kernel-desktop-debugsource, kernel-desktop-devel, kernel-desktop-devel-debuginfo, kernel-devel, kernel-docs, kernel-ec2, kernel-ec2-base, kernel-ec2-base-debuginfo, kernel-ec2-debuginfo, kernel-ec2-debugsource, kernel-ec2-devel, kernel-ec2-devel-debuginfo, kernel-ec2-extra, kernel-ec2-extra-debuginfo, kernel-pae, kernel-pae-base, kernel-pae-base-debuginfo, kernel-pae-debuginfo, kernel-pae-debugsource, kernel-pae-devel, kernel-pae-devel-debuginfo, kernel-source, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-base-debuginfo, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-vanilla, kernel-vanilla-base, kernel-vanilla-base-debuginfo, kernel-vanilla-debuginfo, kernel-vanilla-debugsource, kernel-vanilla-devel, kernel-vanilla-devel-debuginfo, kernel-vmi, kernel-vmi-base, kernel-vmi-base-debuginfo, kernel-vmi-debuginfo, kernel-vmi-debugsource, kernel-vmi-devel, kernel-vmi-devel-debuginfo, kernel-xen, kernel-xen-base, kernel-xen-base-debuginfo, kernel-xen-debuginfo, kernel-xen-debugsource, kernel-xen-devel, kernel-xen-devel-debuginfo, preload-kmp-default, preload-kmp-desktop
Products:
openSUSE 11.4 (debug, i586, x86_64)
Comment 7 Michal Marek 2012-01-25 15:35:05 UTC 
SLE11-SP2 has the fix, SP1 was somehow omitted, I'll fix it.
Comment 8 Swamp Workflow Management 2012-02-06 09:11:47 UTC 
Update released for: kernel-default-extra
Products:
SLE-SERVER 11-EXTRA (s390x)
Comment 9 Swamp Workflow Management 2012-02-06 09:12:47 UTC 
Update released for: kernel-default-extra, kernel-ppc64-extra
Products:
SLE-SERVER 11-EXTRA (ppc64)
Comment 10 Swamp Workflow Management 2012-02-06 10:09:45 UTC 
Update released for: kernel-default-extra, kernel-xen-extra
Products:
SLE-SERVER 11-EXTRA (x86_64)
Comment 11 Swamp Workflow Management 2012-02-06 10:13:44 UTC 
Update released for: kernel-default-extra, kernel-pae-extra, kernel-xen-extra
Products:
SLE-SERVER 11-EXTRA (i386)
Comment 12 Swamp Workflow Management 2012-02-06 10:13:57 UTC 
Update released for: btrfs-kmp-default, btrfs-kmp-pae, btrfs-kmp-trace, btrfs-kmp-xen, cluster-network-kmp-default, cluster-network-kmp-pae, cluster-network-kmp-trace, cluster-network-kmp-xen, ext4dev-kmp-default, ext4dev-kmp-pae, ext4dev-kmp-trace, ext4dev-kmp-xen, gfs2-kmp-default, gfs2-kmp-pae, gfs2-kmp-trace, gfs2-kmp-xen, hyper-v-kmp-default, hyper-v-kmp-pae, hyper-v-kmp-trace, kernel-default, kernel-default-base, kernel-default-devel, kernel-default-extra, kernel-desktop-devel, kernel-ec2, kernel-ec2-base, kernel-ec2-devel, kernel-ec2-extra, kernel-pae, kernel-pae-base, kernel-pae-devel, kernel-pae-extra, kernel-source, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-devel, kernel-trace-extra, kernel-xen, kernel-xen-base, kernel-xen-devel, kernel-xen-extra, ocfs2-kmp-default, ocfs2-kmp-pae, ocfs2-kmp-trace, ocfs2-kmp-xen
Products:
SLE-DEBUGINFO 11-SP1 (i386)
SLE-DESKTOP 11-SP1 (i386)
SLE-HAE 11-SP1 (i386)
SLE-SERVER 11-SP1 (i386)
SLES4VMWARE 11-SP1 (i386)
Comment 13 Swamp Workflow Management 2012-02-06 10:15:21 UTC 
Update released for: kernel-default-extra
Products:
SLE-SERVER 11-EXTRA (ia64)
Comment 14 Swamp Workflow Management 2012-02-06 10:24:25 UTC 
Update released for: btrfs-kmp-default, btrfs-kmp-trace, cluster-network-kmp-default, cluster-network-kmp-trace, ext4dev-kmp-default, ext4dev-kmp-trace, gfs2-kmp-default, gfs2-kmp-trace, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-default-extra, kernel-source, kernel-source-debuginfo, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-trace-extra, ocfs2-kmp-default, ocfs2-kmp-trace
Products:
SLE-DEBUGINFO 11-SP1 (ia64)
SLE-HAE 11-SP1 (ia64)
SLE-SERVER 11-SP1 (ia64)
Comment 15 Swamp Workflow Management 2012-02-06 10:35:25 UTC 
Update released for: btrfs-kmp-default, btrfs-kmp-ppc64, btrfs-kmp-trace, cluster-network-kmp-default, cluster-network-kmp-ppc64, cluster-network-kmp-trace, ext4dev-kmp-default, ext4dev-kmp-ppc64, ext4dev-kmp-trace, gfs2-kmp-default, gfs2-kmp-ppc64, gfs2-kmp-trace, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-extra, kernel-ppc64, kernel-ppc64-base, kernel-ppc64-debuginfo, kernel-ppc64-debugsource, kernel-ppc64-devel, kernel-ppc64-extra, kernel-source, kernel-source-debuginfo, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-extra, ocfs2-kmp-default, ocfs2-kmp-ppc64, ocfs2-kmp-trace
Products:
SLE-DEBUGINFO 11-SP1 (ppc64)
SLE-HAE 11-SP1 (ppc64)
SLE-SERVER 11-SP1 (ppc64)
Comment 16 Swamp Workflow Management 2012-02-06 10:46:04 UTC 
Update released for: btrfs-kmp-default, btrfs-kmp-trace, cluster-network-kmp-default, cluster-network-kmp-trace, ext4dev-kmp-default, ext4dev-kmp-trace, gfs2-kmp-default, gfs2-kmp-trace, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-default-extra, kernel-default-man, kernel-source, kernel-source-debuginfo, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-trace-extra, kernel-trace-man, ocfs2-kmp-default, ocfs2-kmp-trace
Products:
SLE-DEBUGINFO 11-SP1 (s390x)
SLE-HAE 11-SP1 (s390x)
SLE-SERVER 11-SP1 (s390x)
Comment 17 Marcus Meissner 2012-02-06 13:18:13 UTC 
A kernel update for SUSE Linux Enterprise 11 SP1 was just released that fixes/mentions this bug. The released version is 2.6.32.54-0.3.1.

SLERT11 SP1 fix seems missing.
Comment 18 Swamp Workflow Management 2012-02-06 17:08:05 UTC 
Update released for: btrfs-kmp-default, btrfs-kmp-trace, btrfs-kmp-xen, cluster-network-kmp-default, cluster-network-kmp-trace, cluster-network-kmp-xen, ext4dev-kmp-default, ext4dev-kmp-trace, ext4dev-kmp-xen, gfs2-kmp-default, gfs2-kmp-trace, gfs2-kmp-xen, hyper-v-kmp-default, hyper-v-kmp-trace, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-default-extra, kernel-desktop-devel, kernel-ec2, kernel-ec2-base, kernel-ec2-debuginfo, kernel-ec2-debugsource, kernel-ec2-devel, kernel-ec2-devel-debuginfo, kernel-ec2-extra, kernel-source, kernel-source-debuginfo, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-trace-extra, kernel-xen, kernel-xen-base, kernel-xen-debuginfo, kernel-xen-debugsource, kernel-xen-devel, kernel-xen-devel-debuginfo, kernel-xen-extra, ocfs2-kmp-default, ocfs2-kmp-trace, ocfs2-kmp-xen
Products:
SLE-DEBUGINFO 11-SP1 (x86_64)
SLE-DESKTOP 11-SP1 (x86_64)
SLE-HAE 11-SP1 (x86_64)
SLE-SERVER 11-SP1 (x86_64)
SLE-SERVER 11-SP1-TERADATA (x86_64)
SLES4VMWARE 11-SP1 (x86_64)
Comment 19 Mike Galbraith 2012-02-09 07:40:32 UTC 
Applied to SLE11-SP1-RT.
Comment 20 Swamp Workflow Management 2012-03-13 19:10:56 UTC 
Update released for: brocade-bna-kmp-rt, cluster-network-kmp-rt, cluster-network-kmp-rt_trace, drbd-kmp-rt, drbd-kmp-rt_trace, iscsitarget-kmp-rt, kernel-rt, kernel-rt-base, kernel-rt-debuginfo, kernel-rt-debugsource, kernel-rt-devel, kernel-rt-devel-debuginfo, kernel-rt-extra, kernel-rt_trace, kernel-rt_trace-base, kernel-rt_trace-debuginfo, kernel-rt_trace-debugsource, kernel-rt_trace-devel, kernel-rt_trace-devel-debuginfo, kernel-rt_trace-extra, kernel-source-rt, kernel-syms-rt, ocfs2-kmp-rt, ocfs2-kmp-rt_trace, ofed-kmp-rt
Products:
SLE-RT 11-SP1 (x86_64)
Comment 21 Marcus Meissner 2012-05-17 09:05:46 UTC 
all released I think