Gentoo: GLSA-200507-19: zlib: Buffer overflow
Summary
Gentoo Linux Security Advisory GLSA 200507-19
https://security.gentoo.org/
Severity: High
Title: zlib: Buffer overflow
Date: July 22, 2005
Bugs: #99751
ID: 200507-19
Synopsis
=======
zlib is vulnerable to a buffer overflow which could potentially lead to
execution of arbitrary code.
Background
=========
zlib is a widely used free and patent unencumbered data compression
library.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-libs/zlib < 1.2.3 >= 1.2.3
==========
zlib improperly handles invalid data streams which could lead to a
buffer overflow.
Impact
=====
By creating a specially crafted compressed data stream, attackers can
overwrite data structures for applications that use zlib, resulting in
arbitrary code execution or a Denial of Service.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All zlib users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/zlib-1.2.3"
References
=========
[ 1 ] Full Disclosure Announcement
[ 2 ] CAN-2005-1849
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/200507-19
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 2005 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.
https://creativecommons.org/licenses/by-sa/2.0/
Resolution
References
Availability
Concerns
