Security World: [SECURITY] [DSA 1794-1] New Linux 2.6.18 packages fix several vulnerabilities

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Debian Security Advisory DSA-1794-1 security@debian.org
http://www.debian.org/security/ dann frazier
May 6, 2009 http://www.debian.org/security/faq
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Package : linux-2.6
Vulnerability : denial of service/privilege escalation/information leak
Problem type : local/remote
Debian-specific: no
CVE Id(s) : CVE-2008-4307 CVE-2008-5395 CVE-2008-5701 CVE-2008-5702
CVE-2008-5713 CVE-2009-0028 CVE-2009-0029 CVE-2009-0031
CVE-2009-0065 CVE-2009-0322 CVE-2009-0675 CVE-2009-0676
CVE-2009-0834 CVE-2009-0859 CVE-2009-1192 CVE-2009-1265
CVE-2009-1336 CVE-2009-1337 CVE-2009-1439

Several vulnerabilities have been discovered in the Linux kernel that
may lead to denial of service, privilege escalation, or information
leak. The Common Vulnerabilities and Exposures project identifies the
following problems:

CVE-2008-4307

Bryn M. Reeves reported a denial of service in the NFS filesystem.
Local users can trigger a kernel BUG() due to a race condition in
the do_setlk function.

CVE-2008-5395

Helge Deller discovered a denial of service condition that allows
local users on PA-RISC to crash the system by attempting to unwind
a stack containing userspace addresses.

CVE-2008-5701

Vlad Malov reported an issue on 64-bit MIPS where a local user
could cause a system crash by crafting a malicious binary which
makes o32 syscalls with a number less than 4000.

CVE-2008-5702

Zvonimir Rakamaric reported an off-by-one error in the ib700wdt
watchdog driver which allows local users to cause a buffer
underflow by making a specially crafted WDIOC_SETTIMEOUT ioctl
call.

CVE-2008-5713

Flavio Leitner discovered that a local user can cause a denial of
service by generating large amounts of traffic on a large SMP
system, resulting in soft lockups.

CVE-2009-0028

Chris Evans discovered a situation in which a child process can
send an arbitrary signal to its parent.

CVE-2009-0029

Christian Borntraeger discovered an issue effecting the alpha,
mips, powerpc, s390 and sparc64 architectures that allows local
users to cause a denial of service or potentially gain elevated
privileges.

CVE-2009-0031

Vegard Nossum discovered a memory leak in the keyctl subsystem
that allows local users to cause a denial of service by consuming
all available kernel memory.

CVE-2009-0065

Wei Yongjun discovered a memory overflow in the SCTP
implementation that can be triggered by remote users, permitting
remote code execution.

CVE-2009-0322

Pavel Roskin provided a fix for an issue in the dell_rbu driver
that allows a local user to cause a denial of service (oops) by
reading 0 byts from a sysfs entry.

CVE-2009-0675

Roel Kluin discovered inverted logic in the skfddi driver that
permits local, unprivileged users to reset the driver statistics.

CVE-2009-0676

Clement LECIGNE discovered a bug in the sock_getsockopt function
that may result in leaking sensitive kernel memory.

CVE-2009-0834

Roland McGrath discovered an issue on amd64 kernels that allows
local users to circumvent system call audit configurations which
filter based on the syscall numbers or argument details.

CVE-2009-0859

Jiri Olsa discovered that a local user can cause a denial of
service (system hang) using a SHM_INFO shmctl call on kernels
compiled with CONFIG_SHMEM disabled. This issue does not affect
prebuilt Debian kernels.

CVE-2009-1192

Shaohua Li reported an issue in the AGP subsystem they may allow
local users to read sensitive kernel memory due to a leak of
uninitialized memory.

CVE-2009-1265

Thomas Pollet reported an overflow in the af_rose implementation
that allows remote attackers to retrieve uninitialized kernel
memory that may contain sensitive data.

CVE-2009-1336

Trond Myklebust reported an issue in the encode_lookup() function
in the nfs server subsystem that allows local users to cause a
denial of service (oops in encode_lookup()) by use of a long
filename.

CVE-2009-1337

Oleg Nesterov discovered an issue in the exit_notify function that
allows local users to send an arbitrary signal to a process by
running a program that modifies the exit_signal field and then
uses an exec system call to launch a setuid application.

CVE-2009-1439

Pavan Naregundi reported an issue in the CIFS filesystem code that
allows remote users to overwrite memory via a long
nativeFileSystem field in a Tree Connect response during mount.

For the oldstable distribution (etch), this problem has been fixed in
version 2.6.18.dfsg.1-24etch2.

We recommend that you upgrade your linux-2.6, fai-kernels, and
user-mode-linux packages.

Note: Debian carefully tracks all known security issues across every
linux kernel package in all releases under active security support.
However, given the high frequency at which low-severity security
issues are discovered in the kernel and the resource requirements of
doing an update, updates for lower priority issues will normally not
be released for all kernels at the same time. Rather, they will be
released in a staggered or "leap-frog" fashion.

Upgrade instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

The following matrix lists additional source packages that were rebuilt for
compatability with or to take advantage of this update:

Debian 4.0 (etch)
fai-kernels 1.17+etch.24etch2
user-mode-linux 2.6.18-1um-2etch.24etch2

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 4.0 alias etch
- -------------------------------

Oldstable updates are available for alpha, amd64, arm, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

http://security.debian.org/pool/updates/main/l/linux-2.6/linux-2.6_2.6.18.dfsg.1-24etch2.dsc
Size/MD5 checksum: 5672 29972a87539a76fb5b146470f7b45c39
http://security.debian.org/pool/updates/main/l/linux-2.6/linux-2.6_2.6.18.dfsg.1-24etch1.diff.gz
Size/MD5 checksum: 5536652 bf239ac0f2487929933aa0629de64ad7
http://security.debian.org/pool/updates/main/l/linux-2.6/linux-2.6_2.6.18.dfsg.1-24etch1.dsc
Size/MD5 checksum: 5672 b92a0d9b93d8ccf430734e0e3cc2fe87
http://security.debian.org/pool/updates/main/l/linux-2.6/linux-2.6_2.6.18.dfsg.1-24etch2.diff.gz
Size/MD5 checksum: 5536709 4503d0ff5de1d53b5a672289ed5848f2
http://security.debian.org/pool/updates/main/l/linux-2.6/linux-2.6_2.6.18.dfsg.1.orig.tar.gz
Size/MD5 checksum: 52225460 6a1ab0948d6b5b453ea0fce0fcc29060
http://security.debian.org/pool/updates/main/f/fai-kernels/fai-kernels_1.17+etch.24etch2.dsc
Size/MD5 checksum: 740 b37bc8f75334963c7f0410c2296e77fb
http://security.debian.org/pool/updates/main/u/user-mode-linux/user-mode-linux_2.6.18-1um-2etch.24etch2.dsc
Size/MD5 checksum: 892 68d98e1c77c46035a49ff30831b6dde9
http://security.debian.org/pool/updates/main/f/fai-kernels/fai-kernels_1.17+etch.24etch2.tar.gz
Size/MD5 checksum: 59036 682c3c14e9ef4e7696db50899a02f0b5
http://security.debian.org/pool/updates/main/u/user-mode-linux/user-mode-linux_2.6.18-1um.orig.tar.gz
Size/MD5 checksum: 14435 4d10c30313e11a24621f7218c31f3582
http://security.debian.org/pool/updates/main/u/user-mode-linux/user-mode-linux_2.6.18-1um-2etch.24etch2.diff.gz
Size/MD5 checksum: 20663 9fe6e2b6513767676fb005a00cbb71f6

Architecture independent packages:

alpha architecture (DEC Alpha)

amd64 architecture (AMD x86_64 (AMD64))

arm architecture (ARM)

hppa architecture (HP PA RISC)

i386 architecture (Intel ia32)

ia64 architecture (Intel ia64)

mips architecture (MIPS (Big Endian))

mipsel architecture (MIPS (Little Endian))

powerpc architecture (PowerPC)

s390 architecture (IBM S/390)

sparc architecture (Sun SPARC/UltraSPARC)

These changes will probably be included in the oldstable distribution on
its next update.

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For apt-get: deb http://security.debian.org/ oldstable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/oldstable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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Wednesday, May 06, 2009

[SECURITY] [DSA 1794-1] New Linux 2.6.18 packages fix several vulnerabilities

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