GLSA 200804-02: bzip2: Denial of Service
| Severity: | normal |
| Title: | bzip2: Denial of Service |
| Date: | 04/02/2008 |
| Bugs: | |
| ID: | 200804-02 |
Synopsis
A buffer overread vulnerability has been discovered in Bzip2.Background
bzip2 is a free and open source lossless data compression program.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| app-arch/bzip2 | < 1.0.5 | >= 1.0.5 | All supported architectures |
Description
The Oulu University discovered that bzip2 does not properly check offsets provided by the bzip2 file, leading to a buffer overread.
Impact
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.
Workaround
There is no known workaround at this time.
Resolution
All bzip2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/bzip2-1.0.5"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.