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----------------------------------------------------------------------
Debian Security Advisory DSA-XXXX-1 security@debian.org
http://www.debian.org/security/ dann frazier
Aug 21, 2008 http://www.debian.org/security/faq
----------------------------------------------------------------------
Package : linux-2.6
Vulnerability : denial of service/information leak
Problem type : local/remote
Debian-specific: no
CVE Id(s) : CVE-2007-6282 CVE-2008-0598 CVE-2008-2729 CVE-2008-2812
CVE-2008-2826 CVE-2008-2931 CVE-2008-3272 CVE-2008-3275
Several vulnerabilities have been discovered in the Linux kernel that may
lead to a denial of service or arbitrary code execution. The Common
Vulnerabilities and Exposures project identifies the following
problems:
CVE-2007-6282
Dirk Nehring discovered a vulnerability in the IPsec code that allows
remote users to cause a denial of service by sending a specially crafted
ESP packet.
CVE-2008-0598
Tavis Ormandy discovered a vulnerability that allows local users to access
uninitialized kernel memory, possibly leaking sensitive data. This issue
is specific to the amd64-flavour kernel images.
CVE-2008-2729
Andi Kleen discovered an issue where uninitialized kernel memory
was being leaked to userspace during an exception. This issue may allow
local users to gain access to sensitive data. Only the amd64-flavour
Debian kernel images are affected.
CVE-2008-2812
Alan Cox discovered an issue in multiple tty drivers that allows
local users to trigger a denial of service (NULL pointer dereference)
and possibly obtain elevated privileges.
CVE-2008-2826
Gabriel Campana discovered an integer overflow in the sctp code that
can be exploited by local users to cause a denial of service.
CVE-2008-2931
Miklos Szeredi reported a missing privilege check in the do_change_type()
function. This allows local, unprivileged users to change the properties
of mount points.
CVE-2008-3272
Tobias Klein reported a locally exploitable data leak in the
snd_seq_oss_synth_make_info() function. This may allow local users
to gain access to sensitive information.
CVE-2008-3275
Zoltan Sogor discovered a coding error in the VFS that allows local users
to exploit a kernel memory leak resulting in a denial of service.
For the stable distribution (etch), this problem has been fixed in
version 2.6.18.dfsg.1-22etch2.
We recommend that you upgrade your linux-2.6, fai-kernels, and
user-mode-linux packages.
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.22etch2
user-mode-linux 2.6.18-1um-2etch.22etch2
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 4.0 alias etch
-------------------------------
Stable updates are available for alpha, amd64, arm, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.
These changes will probably be included in the stable distribution on
its next update.
---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/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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