CVE-2014-5119

Publication date 26 August 2014

Last updated 24 July 2024

Ubuntu priority

High

Why this priority?

Off-by-one error in the __gconv_translit_find function in gconv_trans.c in GNU C Library (aka glibc) allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via vectors related to the CHARSET environment variable and gconv transliteration modules.

Read the notes from the security team

Status

Package Ubuntu Release Status
eglibc 14.04 LTS trusty
Fixed 2.19-0ubuntu6.3
12.04 LTS precise
Fixed 2.15-0ubuntu10.7
10.04 LTS lucid
Fixed 2.11.1-0ubuntu7.16
glibc 14.04 LTS trusty Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release

Notes

jdstrand

per researcher (Chris Evans), a path with an even number of characters to the gconv/ directory makes his exploit harmless. This happens to be true on Ubuntu with multiarch on 12.04 LTS and higher on amd64 and i386. Ubuntu 10.04 LTS and armhf on all supported releases has an odd path length. There are likely other ways to exploit on Ubuntu. eglibc on 14.10 exists but is scheduled to be removed the severity was bumped from medium to high once additional research was revealed on 2014-08-26 (marked PublicDateAtUSN accordingly). There are no known active exploits against Ubuntu as of 2014-08-28, but they will likely be available soon.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
glibc