SuSE: 2009-061: Linux kernel Security Update
Summary
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
______________________________________________________________________________
SUSE Security Announcement
Package: kernel
Announcement ID: SUSE-SA:2009:061
Date: Mon, 14 Dec 2009 18:00:00 +0000
Affected Products: SLE SDK 10 SP3
SUSE Linux Enterprise Desktop 10 SP3
SUSE Linux Enterprise 10 SP3 DEBUGINFO
SUSE Linux Enterprise Server 10 SP3
Vulnerability Type: remote denial of service
CVSS v2 Base Score: 7.8 (HIGH)
SUSE Default Package: yes
Cross-References: CVE-2005-4881, CVE-2009-2903, CVE-2009-3080
CVE-2009-3612, CVE-2009-3620, CVE-2009-3621
CVE-2009-3726, CVE-2009-3889, CVE-2009-3939
CVE-2009-4005, CVE-2009-4021
Content of This Advisory:
1) Security Vulnerability Resolved:
Linux kernel security issues
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
6) Authenticity Verification and Additional Information
______________________________________________________________________________
1) Problem Description and Brief Discussion
This update fixes various bugs and some security issues in the SUSE
Linux Enterprise 10 SP 3 kernel.
Following security issues were fixed:
CVE-2009-3939: A sysctl variable of the megaraid_sas driver was
world writable, allowing local users to cause a denial of service or
potential code execution.
CVSS v2 Base Score: 6.6 (MEDIUM) (AV:L/AC:L/Au:N/C:N/I:C/A:C)
CVE-2009-3889: The dbg_lvl file for the megaraid_sas driver in the
Linux kernel before 2.6.27 has world-writable permissions, which
allows local users to change the (1) behavior and (2) logging level
of the driver by modifying this file.
This was already fine in SLES 10 SP3 GA due to a driver update of the
megaraid_sas driver and is just listed for completeness here.
CVSS v2 Base Score: 4.6 (MEDIUM) (AV:L/AC:L/Au:N/C:P/I:P/A:P)
CVE-2009-4005: The collect_rx_frame function in
drivers/isdn/hisax/hfc_usb.c in the Linux kernel before 2.6.32-rc7
allows attackers to have an unspecified impact via a crafted HDLC
packet that arrives over ISDN and triggers a buffer under-read.
This requires the attacker to be able to send ISDN low level frames
to the host.
CVSS v2 Base Score: 7.2 (HIGH) (AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVE-2009-3080: A negative offset in a ioctl in the GDTH RAID driver
was fixed.
CVSS v2 Base Score: 7.2 (HIGH) (AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVE-2009-4021: The fuse_direct_io function in fs/fuse/file.c in the
fuse subsystem in the Linux kernel might allow attackers to cause a
denial of service (invalid pointer dereference and OOPS) via vectors possibly related to a memory-consumption attack.
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:N/I:N/A:C)
CVE-2009-2903: Memory leak in the AppleTalk subsystem in the Linux
kernel when the AppleTalk and ipddp modules are loaded but the ipddp"N"
device is not found, allows remote attackers to cause a denial of
service (memory consumption) via IP-DDP datagrams.
CVSS v2 Base Score: 7.1 (AV:N/AC:M/Au:N/C:N/I:N/A:C)
CVE-2009-3621: net/unix/af_unix.c in the Linux kernel allows local
users to cause a denial of service (system hang) by creating an
abstract-namespace AF_UNIX listening socket, performing a shutdown
operation on this socket, and then performing a series of connect
operations to this socket.
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:N/I:N/A:C)
CVE-2009-3612 / CVE-2005-4881: The tcf_fill_node function in
net/sched/cls_api.c in the netlink subsystem in the Linux kernel 2.6.x
before 2.6.32-rc5, and 2.4.37.6 and earlier, does not initialize a
certain tcm__pad2 structure member, which might allow local users to obtain sensitive information from kernel memory via unspecified
vectors. NOTE: this issue existed because of an incomplete fix for
CVE-2005-4881.
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:C/I:N/A:N)
CVE-2009-3620: The ATI Rage 128 (aka r128) driver in the Linux
kernel does not properly verify Concurrent Command Engine (CCE)
state initialization, which allows local users to cause a denial of
service (NULL pointer dereference and system crash) or possibly gain
privileges via unspecified ioctl calls.
CVSS v2 Base Score: 4.9 (MEDIUM) (AV:L/AC:L/Au:N/C:N/I:N/A:C)
CVE-2009-3726: The nfs4_proc_lock function in fs/nfs/nfs4proc.c
in the NFSv4 client in the Linux kernel allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic)
by sending a certain response containing incorrect file attributes,
which trigger attempted use of an open file that lacks NFSv4 state.
CVSS v2 Base Score: 7.8 (HIGH) (AV:N/AC:L/Au:N/C:N/I:N/A:C)
The rio and sx serial multi port card drivers were disabled via a
modprobe blacklist due to severe bugs.
For a full list of changes, please read the RPM changelog.
2) Solution or Work-Around
There is no known workaround, please install the update packages.
3) Special Instructions and Notes
Please reboot the machine after installing this update.
4) Package Location and Checksums
The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command
rpm -Fhv
References
