Ubuntu Security Notices
USN-470-1

USN-470-1: Linux kernel vulnerabilities

Publication date

8 June 2007

Overview

Linux kernel vulnerabilities

Releases

7.04

Details

USN-464-1 fixed several vulnerabilities in the Linux kernel. Some
additional code changes were accidentally included in the Feisty update
which caused trouble for some people who were not using UUID-based
filesystem mounts. These changes have been reverted. We apologize for
the inconvenience. For more information see:
https://launchpad.net/bugs/117314
https://wiki.ubuntu.com/UsingUUID

Ilja van Sprundel discovered that Bluetooth setsockopt calls could leak
kernel memory contents via an uninitialized stack buffer. A local
attacker could exploit this flaw to view sensitive kernel information.
(CVE-2007-1353)

The GEODE-AES driver did not correctly initialize its encryption key.
Any data encrypted using this type of device would be easily compromised.
(

The GEODE-AES driver did not correctly initialize its encryption key.
Any data encrypted using this type of device would be easily compromised.
(CVE-2007-2451)

The random number generator was hashing a subset of the available
entropy, leading to slightly less random numbers. Additionally, systems
without an entropy source would be seeded with the same inputs at boot
time, leading to a repeatable series of random numbers. (CVE-2007-2453)

Update instructions

After a standard system upgrade you need to reboot your computer to effect the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release	Package Version
7.04 feisty	linux-image-2.6.20-16-386 – 2.6.20-16.29
	linux-image-2.6.20-16-powerpc – 2.6.20-16.29
	linux-image-2.6.20-16-server – 2.6.20-16.29
	linux-image-2.6.20-16-mckinley – 2.6.20-16.29
	linux-image-2.6.20-16-sparc64-smp – 2.6.20-16.29
	linux-image-2.6.20-16-hppa32 – 2.6.20-16.29
	linux-image-2.6.20-16-powerpc64-smp – 2.6.20-16.29
	linux-image-2.6.20-16-itanium – 2.6.20-16.29
	linux-image-2.6.20-16-powerpc-smp – 2.6.20-16.29
	linux-image-2.6.20-16-generic – 2.6.20-16.29
	linux-image-2.6.20-16-sparc64 – 2.6.20-16.29
	linux-image-2.6.20-16-hppa64 – 2.6.20-16.29
	linux-image-2.6.20-16-lowlatency – 2.6.20-16.29
	linux-image-2.6.20-16-server-bigiron – 2.6.20-16.29

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USN-470-1: Linux kernel vulnerabilities

Details

Update instructions

Reduce your security exposure

References

Related notices