SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 7568)

This script is Copyright (C) 2011-2012 Tenable Network Security, Inc.


Synopsis :

The remote SuSE 10 host is missing a security-related patch.

Description :

This kernel update for the SUSE Linux Enterprise 10 SP3 kernel fixes
several security issues and bugs.

The following security issues were fixed :

- Multiple integer overflows in the next_pidmap function
in kernel/pid.c in the Linux kernel allowed local users
to cause a denial of service (system crash) via a
crafted (1) getdents or (2) readdir system call.
(CVE-2011-1593)

- Only half of the fix for this vulnerability was only
applied, the fix was completed now. Original text:
drivers/net/e1000/e1000_main.c in the e1000 driver in
the Linux kernel handled Ethernet frames that exceed the
MTU by processing certain trailing payload data as if it
were a complete frame, which allows remote attackers to
bypass packet filters via a large packet with a crafted
payload. (CVE-2009-4536)

- Boundschecking was missing in AARESOLVE_OFFSET in the
SCTP protocol, which allowed local attackers to
overwrite kernel memory and so escalate privileges or
crash the kernel. (CVE-2011-1573)

- Heap-based buffer overflow in the ldm_frag_add function
in fs/partitions/ldm.c in the Linux kernel might have
allowed local users to gain privileges or obtain
sensitive information via a crafted LDM partition table.
(CVE-2011-1017)

- When using a setuid root mount.cifs, local users could
hijack password protected mounted CIFS shares of other
local users. (CVE-2011-1585)

- Kernel information via the TPM devices could by used by
local attackers to read kernel memory. (CVE-2011-1160)

- The Linux kernel automatically evaluated partition
tables of storage devices. The code for evaluating EFI
GUID partitions (in fs/partitions/efi.c) contained a bug
that causes a kernel oops on certain corrupted GUID
partition tables, which might be used by local attackers
to crash the kernel or potentially execute code.
(CVE-2011-1577)

- In the IrDA module, length fields provided by a peer for
names and attributes may be longer than the destination
array sizes and were not checked, this allowed local
attackers (close to the irda port) to potentially
corrupt memory. (CVE-2011-1180)

- A system out of memory condition (denial of service)
could be triggered with a large socket backlog,
exploitable by local users. This has been addressed by
backlog limiting. (CVE-2010-4251)

- The Radeon GPU drivers in the Linux kernel did not
properly validate data related to the AA resolve
registers, which allowed local users to write to
arbitrary memory locations associated with (1) Video RAM
(aka VRAM) or (2) the Graphics Translation Table (GTT)
via crafted values. (CVE-2011-1016)

- When parsing the FAC_NATIONAL_DIGIS facilities field, it
was possible for a remote host to provide more
digipeaters than expected, resulting in heap corruption.
(CVE-2011-1493)

- Local attackers could send signals to their programs
that looked like coming from the kernel, potentially
gaining privileges in the context of setuid programs.
(CVE-2011-1182)

- The code for evaluating LDM partitions (in
fs/partitions/ldm.c) contained bugs that could crash the
kernel for certain corrupted LDM partitions.
(CVE-2011-1017 / CVE-2011-1012)

- The code for evaluating Mac partitions (in
fs/partitions/mac.c) contained a bug that could crash
the kernel for certain corrupted Mac partitions.
(CVE-2011-1010)

- The code for evaluating OSF partitions (in
fs/partitions/osf.c) contained a bug that leaks data
from kernel heap memory to userspace for certain
corrupted OSF partitions. (CVE-2011-1163)

- Specially crafted requests may be written to
/dev/sequencer resulting in an underflow when
calculating a size for a copy_from_user() operation in
the driver for MIDI interfaces. On x86, this just
returns an error, but it could have caused memory
corruption on other architectures. Other malformed
requests could have resulted in the use of uninitialized
variables. (CVE-2011-1476)

- Due to a failure to validate user-supplied indexes in
the driver for Yamaha YM3812 and OPL-3 chips, a
specially crafted ioctl request could have been sent to
/dev/sequencer, resulting in reading and writing beyond
the bounds of heap buffers, and potentially allowing
privilege escalation. (CVE-2011-1477)

- A information leak in the XFS geometry calls could be
used by local attackers to gain access to kernel
information. (CVE-2011-0191)

- The sctp_rcv_ootb function in the SCTP implementation in
the Linux kernel allowed remote attackers to cause a
denial of service (infinite loop) via (1) an Out Of The
Blue (OOTB) chunk or (2) a chunk of zero length.
(CVE-2010-0008)

See also :

http://support.novell.com/security/cve/CVE-2009-4536.html
http://support.novell.com/security/cve/CVE-2010-0008.html
http://support.novell.com/security/cve/CVE-2010-4251.html
http://support.novell.com/security/cve/CVE-2011-0191.html
http://support.novell.com/security/cve/CVE-2011-1010.html
http://support.novell.com/security/cve/CVE-2011-1012.html
http://support.novell.com/security/cve/CVE-2011-1016.html
http://support.novell.com/security/cve/CVE-2011-1017.html
http://support.novell.com/security/cve/CVE-2011-1160.html
http://support.novell.com/security/cve/CVE-2011-1163.html
http://support.novell.com/security/cve/CVE-2011-1180.html
http://support.novell.com/security/cve/CVE-2011-1182.html
http://support.novell.com/security/cve/CVE-2011-1476.html
http://support.novell.com/security/cve/CVE-2011-1477.html
http://support.novell.com/security/cve/CVE-2011-1493.html
http://support.novell.com/security/cve/CVE-2011-1573.html
http://support.novell.com/security/cve/CVE-2011-1577.html
http://support.novell.com/security/cve/CVE-2011-1585.html
http://support.novell.com/security/cve/CVE-2011-1593.html

Solution :

Apply ZYPP patch number 7568.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)

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