GLSA 200908-07: Perl Compress::Raw modules: Denial of Service
Severity: | normal |
Title: | Perl Compress::Raw modules: Denial of Service |
Date: | 08/18/2009 |
Bugs: |
|
ID: | 200908-07 |
Synopsis
An off-by-one error in Compress::Raw::Zlib and Compress::Raw::Bzip2 might lead to a Denial of Service.Background
Compress::Raw::Zlib and Compress::Raw::Bzip2 are Perl low-level interfaces to the zlib and bzip2 compression libraries.
Affected packages
Package | Vulnerable | Unaffected | Architecture(s) |
---|---|---|---|
perl-core/Compress-Raw-Zlib | < 2.020 | >= 2.020 | All supported architectures |
perl-core/Compress-Raw-Bzip2 | < 2.020 | >= 2.020 | All supported architectures |
Description
Leo Bergolth reported an off-by-one error in the inflate() function in Zlib.xs of Compress::Raw::Zlib, possibly leading to a heap-based buffer overflow (CVE-2009-1391).
Paul Marquess discovered a similar vulnerability in the bzinflate() function in Bzip2.xs of Compress::Raw::Bzip2 (CVE-2009-1884).
Impact
A remote attacker might entice a user or automated system (for instance running SpamAssassin or AMaViS) to process specially crafted files, possibly resulting in a Denial of Service condition.
Workaround
There is no known workaround at this time.
Resolution
All Compress::Raw::Zlib users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=perl-core/Compress-Raw-Zlib-2.020"
All Compress::Raw::Bzip2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=perl-core/Compress-Raw-Bzip2-2.020"
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.