USN-1991-1: GNU C Library vulnerabilities

Releases

• Ubuntu 13.04
• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 10.04

Packages

• eglibc - GNU C Library

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)

Update instructions

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

Ubuntu 13.04

• libc6 - 2.17-0ubuntu5.1

Ubuntu 12.10

• libc6 - 2.15-0ubuntu20.2

Ubuntu 12.04

• libc6 - 2.15-0ubuntu10.5

Ubuntu 10.04

• libc6 - 2.11.1-0ubuntu7.13

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

References

• CVE-2012-4412
• CVE-2012-4424
• CVE-2013-0242
• CVE-2013-1914
• CVE-2013-4237
• CVE-2013-4332