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Ubuntu: New Linux packages fix security vulnerabilities

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. 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. 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.

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. Dan Rosenberg discovered that XFS did not correctly initialize memory. A local attacker could make crafted ioctl calls to leak portions of kernel stack memory, leading to a loss of privacy. Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1133-1
May 24, 2011

linux vulnerabilities
==========================================================================

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

- Ubuntu 8.04 LTS

Summary:

Multiple flaws in the Linux kernel.

Software Description:
- linux: Linux kernel

Details:

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)

Dan Rosenberg discovered that XFS did not correctly initialize memory. A
local attacker could make crafted ioctl calls to leak portions of kernel
stack memory, leading to a loss of privacy. (CVE-2011-0711)

Update instructions:

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

Ubuntu 8.04 LTS:
 linux-image-2.6.24-29-386       2.6.24-29.89
 linux-image-2.6.24-29-generic   2.6.24-29.89
 linux-image-2.6.24-29-hppa32    2.6.24-29.89
 linux-image-2.6.24-29-hppa64    2.6.24-29.89
 linux-image-2.6.24-29-itanium   2.6.24-29.89
 linux-image-2.6.24-29-lpia      2.6.24-29.89
 linux-image-2.6.24-29-lpiacompat  2.6.24-29.89
 linux-image-2.6.24-29-mckinley  2.6.24-29.89
 linux-image-2.6.24-29-openvz    2.6.24-29.89
 linux-image-2.6.24-29-powerpc   2.6.24-29.89
 linux-image-2.6.24-29-powerpc-smp  2.6.24-29.89
 linux-image-2.6.24-29-powerpc64-smp  2.6.24-29.89
 linux-image-2.6.24-29-rt        2.6.24-29.89
 linux-image-2.6.24-29-server    2.6.24-29.89
 linux-image-2.6.24-29-sparc64   2.6.24-29.89
 linux-image-2.6.24-29-sparc64-smp  2.6.24-29.89
 linux-image-2.6.24-29-virtual   2.6.24-29.89
 linux-image-2.6.24-29-xen       2.6.24-29.89

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

References:
 CVE-2010-4342, CVE-2010-4527, CVE-2010-4529, CVE-2011-0521,
 CVE-2011-0711

Package Information:
 https://launchpad.net/ubuntu/+source/linux/2.6.24-29.89
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