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Alerts This Week
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Ubuntu 10.10: USN-1160-1 Moderate: Multiple Kernel Attacks Fixed

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Calendar Grey June 28, 2011
Scroller Ubuntu
The Ubuntu Security Notice USN-1160-1 reports serious vulnerabilities in the Linux kernel that could compromise system integrity and user data, urging users to update promptly.
Multiple kernel vulnerabilities have been fixed.

Summary

Multiple kernel vulnerabilities have been fixed.

Software Description:

- linux: Linux kernel

Details:

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 Rosenburg discovered that the CAN subsystem leaked kernel addresses

into the /proc filesystem. A local attacker could use this to increase the

chances of a successful memory corruption exploit. (CVE-2010-4565)

Kees Cook discovered that the IOWarrior USB device driver did not correctly

check certain size fields. A local attacker with physical access could plug

in a specially crafted USB device to crash the system or potentially gain

root privileges. (CVE-2010-4656)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly

clear memory when writing certain file holes. A local attacker could

exploit this to read uninitialized data ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu memory leak kernel local attack root privileges

Update Instructions

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

Ubuntu 10.10:
  linux-image-2.6.35-30-generic   2.6.35-30.54
  linux-image-2.6.35-30-generic-pae  2.6.35-30.54
  linux-image-2.6.35-30-omap      2.6.35-30.54
  linux-image-2.6.35-30-powerpc   2.6.35-30.54
  linux-image-2.6.35-30-powerpc-smp  2.6.35-30.54
  linux-image-2.6.35-30-powerpc64-smp  2.6.35-30.54
  linux-image-2.6.35-30-server    2.6.35-30.54
  linux-image-2.6.35-30-versatile  2.6.35-30.54
  linux-image-2.6.35-30-virtual   2.6.35-30.54

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-2010-4529, CVE-2010-4565, CVE-2010-4656, 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-2011-1082,

CVE-2011-1083, CVE-2011-1169, CVE-2011-1182, CVE-2011-1494,

CVE-2011-1495, CVE-2011-1593, CVE-2011-1745, CVE-2011-1748,

CVE-2011-2022

Severity
important
Lowest
Low
Medium
High
Critical

June 28, 2011

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu memory leak kernel local attack root privileges

Package Information

https://launchpad.net/ubuntu/+source/linux/2.6.35-30.54

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