bugtraq - [USN-1111-1] Linux kernel vulnerabilities

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Date: Thu, 5 May 2011 14:17:21 -0700
From: Kees Cook <kees@...ntu.com>
To: ubuntu-security-announce@...ts.ubuntu.com
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk
Subject: [USN-1111-1] Linux kernel vulnerabilities

==========================================================================
Ubuntu Security Notice USN-1111-1
May 05, 2011

linux-source-2.6.15 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 6.06 LTS

Summary:

Multiple flaws fixed in the Linux kernel.

Software Description:
- linux-source-2.6.15: Linux kernel

Details:

Dan Rosenberg discovered multiple flaws in the X.25 facilities parsing. If
a system was using X.25, a remote attacker could exploit this to crash the
system, leading to a denial of service. (CVE-2010-4164)

Vegard Nossum discovered that memory garbage collection was not handled
correctly for active sockets. A local attacker could exploit this to
allocate all available kernel memory, leading to a denial of service.
(CVE-2010-4249)

Nelson Elhage discovered that the kernel did not correctly handle process
cleanup after triggering a recoverable kernel bug. If a local attacker were
able to trigger certain kinds of kernel bugs, they could create a specially
crafted process to gain root privileges. (CVE-2010-4258)

Nelson Elhage discovered that Econet did not correctly handle AUN packets
over UDP. A local attacker could send specially crafted traffic to crash
the system, leading to a denial of service. (CVE-2010-4342)

Dan Rosenberg discovered that the OSS subsystem did not handle name
termination correctly. A local attacker could exploit this crash the system
or gain root privileges. (CVE-2010-4527)

Dan Rosenberg discovered that IRDA did not correctly check the size of
buffers. On non-x86 systems, a local attacker could exploit this to read
kernel heap memory, leading to a loss of privacy. (CVE-2010-4529)

Dan Carpenter discovered that the TTPCI DVB driver did not check certain
values during an ioctl. If the dvb-ttpci module was loaded, a local
attacker could exploit this to crash the system, leading to a denial of
service, or possibly gain root privileges. (CVE-2011-0521)

Jens Kuehnel discovered that the InfiniBand driver contained a race
condition. On systems using InfiniBand, a local attacker could send
specially crafted requests to crash the system, leading to a denial of
service. (CVE-2011-0695)

Timo Warns discovered that the LDM disk partition handling code did not
correctly handle certain values. By inserting a specially crafted disk
device, a local attacker could exploit this to gain root privileges.
(CVE-2011-1017)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 6.06 LTS:
  linux-image-2.6.15-57-386       2.6.15-57.97
  linux-image-2.6.15-57-686       2.6.15-57.97
  linux-image-2.6.15-57-amd64-generic  2.6.15-57.97
  linux-image-2.6.15-57-amd64-k8  2.6.15-57.97
  linux-image-2.6.15-57-amd64-server  2.6.15-57.97
  linux-image-2.6.15-57-amd64-xeon  2.6.15-57.97
  linux-image-2.6.15-57-hppa32    2.6.15-57.97
  linux-image-2.6.15-57-hppa32-smp  2.6.15-57.97
  linux-image-2.6.15-57-hppa64    2.6.15-57.97
  linux-image-2.6.15-57-hppa64-smp  2.6.15-57.97
  linux-image-2.6.15-57-itanium   2.6.15-57.97
  linux-image-2.6.15-57-itanium-smp  2.6.15-57.97
  linux-image-2.6.15-57-k7        2.6.15-57.97
  linux-image-2.6.15-57-mckinley  2.6.15-57.97
  linux-image-2.6.15-57-mckinley-smp  2.6.15-57.97
  linux-image-2.6.15-57-powerpc   2.6.15-57.97
  linux-image-2.6.15-57-powerpc-smp  2.6.15-57.97
  linux-image-2.6.15-57-powerpc64-smp  2.6.15-57.97
  linux-image-2.6.15-57-server    2.6.15-57.97
  linux-image-2.6.15-57-server-bigiron  2.6.15-57.97
  linux-image-2.6.15-57-sparc64   2.6.15-57.97
  linux-image-2.6.15-57-sparc64-smp  2.6.15-57.97

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  CVE-2010-4164, CVE-2010-4249, CVE-2010-4258, CVE-2010-4342,
  CVE-2010-4527, CVE-2010-4529, CVE-2011-0521, CVE-2011-0695,
  CVE-2011-1017

Package Information:
  https://launchpad.net/ubuntu/+source/linux-source-2.6.15/2.6.15-57.97

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