[ GLSA 200508-01 ] Compress::Zlib: Buffer overflow

[GLSA]

Gentoo Linux Security Advisory

Title: Compress::Zlib: Buffer overflow (GLSA 200508-01)
Severity: high
Exploitable: remote
Date: August 01, 2005
Updated: May 28, 2009
Bug(s): #100540
ID: 200508-01

Synopsis


Compress::Zlib is vulnerable to a buffer overflow which could potentially
lead to execution of arbitrary code.


Background


The Compress::Zlib is a Perl module which provides an interface to
the zlib compression library.


Affected Packages

Package: perl-core/Compress-Zlib
Vulnerable: < 1.35
Unaffected: >= 1.35
Architectures: All supported architectures


Description


Compress::Zlib 1.34 contains a local vulnerable version of zlib,
which may lead to a buffer overflow.


Impact


By creating a specially crafted compressed data stream, attackers
can overwrite data structures for applications that use Compress::Zlib,
resulting in a Denial of Service and potentially arbitrary code
execution.


Workaround


There is no known workaround at this time.


Resolution


All Compress::Zlib users should upgrade to the latest version: