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Debian Security Advisory DSA-1794-1
[email protected] 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:
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