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Ubuntu 10.04 LTS: USN-1187-1 Critical: Kernel Flaw Fixes Due To DoS

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Calendar Grey August 9, 2011
Scroller Ubuntu
Several core vulnerabilities patched in Ubuntu 10.04 LTS impacting user security and confidentiality.
Multiple kernel flaws have been fixed.

Summary

Multiple kernel flaws have been fixed.

Software Description:

- linux-lts-backport-maverick: Linux kernel backport from Maverick

Details:

It was discovered that KVM did not correctly initialize certain CPU

registers. A local attacker could exploit this to crash the system, leading

to a denial of service. (CVE-2010-3698)

Thomas Pollet discovered that the RDS network protocol did not check

certain iovec buffers. A local attacker could exploit this to crash the

system or possibly execute arbitrary code as the root user. (CVE-2010-3865)

Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did

not correctly clear kernel memory. A local attacker could exploit this to

read kernel stack memory, leading to a loss of privacy. (CVE-2010-3875)

Vasiliy Kulikov discovered that the Linux kernel sockets implementation did

not properly initialize certain structures. A local attacker could exploit

this to read kernel stack memory, leading to a loss of priva...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu local exploit kernel flaw system privacy

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.35-30-generic   2.6.35-30.56~lucid1
  linux-image-2.6.35-30-generic-pae  2.6.35-30.56~lucid1
  linux-image-2.6.35-30-server    2.6.35-30.56~lucid1
  linux-image-2.6.35-30-virtual   2.6.35-30.56~lucid1

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

CVE-2010-3698, CVE-2010-3865, CVE-2010-3875, CVE-2010-3876,

CVE-2010-3877, CVE-2010-3880, CVE-2010-3881, CVE-2010-4075,

CVE-2010-4076, CVE-2010-4077, CVE-2010-4079, CVE-2010-4083,

CVE-2010-4163, CVE-2010-4248, CVE-2010-4342, CVE-2010-4346,

CVE-2010-4527, CVE-2010-4529, CVE-2010-4565, CVE-2010-4649,

CVE-2010-4656, CVE-2010-4668, CVE-2011-0463, CVE-2011-0521,

CVE-2011-0695, CVE-2011-0711, CVE-2011-0712, CVE-2011-0726,

CVE-2011-1010, CVE-2011-1012, CVE-2011-1013, CVE-2011-1016,

CVE-2011-1017, CVE-2011-1019, CVE-2011-1044, CVE-2011-1078,

CVE-2011-1079, CVE-2011-1080, CVE-2011-1082, CVE-2011-1090,

Severity
critical
Lowest
Low
Medium
High
Critical

August 09, 2011

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu local exploit kernel flaw system privacy

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-backport-maverick/2.6.35-30.56~lucid1

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