Joined: 12 May 2004
|Posted: Wed Apr 02, 2008 10:26 pm Post subject: [ GLSA 200804-02 ] bzip2: Denial of Service
|Gentoo Linux Security Advisory
Title: bzip2: Denial of Service (GLSA 200804-02)
Date: April 02, 2008
A buffer overread vulnerability has been discovered in Bzip2.
bzip2 is a free and open source lossless data compression program.
Vulnerable: < 1.0.5
Unaffected: >= 1.0.5
Architectures: All supported architectures
The Oulu University discovered that bzip2 does not properly check offsets provided by the bzip2 file, leading to a buffer overread.
Remote attackers can entice a user or automated system to open a specially crafted file that triggers a buffer overread, causing a Denial of Service. libbz2 and programs linking against it are also affected.
There is no known workaround at this time.
All bzip2 users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/bzip2-1.0.5"