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USN-1991-1: GNU C Library vulnerabilities

21 October 2013

Several security issues were fixed in the GNU C Library.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Releases

Packages

Details

It was discovered that the GNU C Library incorrectly handled the strcoll()
function. An attacker could use this issue to cause a denial of service, or
possibly execute arbitrary code. (CVE-2012-4412, CVE-2012-4424)

It was discovered that the GNU C Library incorrectly handled multibyte
characters in the regular expression matcher. An attacker could use this
issue to cause a denial of service. (CVE-2013-0242)

It was discovered that the GNU C Library incorrectly handled large numbers
of domain conversion results in the getaddrinfo() function. An attacker
could use this issue to cause a denial of service. (CVE-2013-1914)

It was discovered that the GNU C Library readdir_r() function incorrectly
handled crafted NTFS or CIFS images. An attacker could use this issue to
cause a denial of service, or possibly execute arbitrary code.
(CVE-2013-4237)

It was discovered that the GNU C Library incorrectly handled memory
allocation. An attacker could use this issue to cause a denial of service.
(CVE-2013-4332)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 13.04
Ubuntu 12.10
Ubuntu 12.04
Ubuntu 10.04

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