zlib: Denial of service vulnerability

2004-08-27T00:00:00
ID GLSA-200408-26
Type gentoo
Reporter Gentoo Foundation
Modified 2006-05-22T00:00:00

Description

Background

zlib is a general-purpose data-compression library.

Description

zlib contains a bug in the handling of errors in the "inflate()" and "inflateBack()" functions.

Impact

An attacker could exploit this vulnerability to launch a Denial of Service attack on any application using the zlib library.

Workaround

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version of zlib.

Resolution

All zlib users should upgrade to the latest version:

 # emerge sync

 # emerge -pv ">=sys-libs/zlib-1.2.1-r3"
 # emerge ">=sys-libs/zlib-1.2.1-r3"

You should also run revdep-rebuild to rebuild any packages that depend on older versions of zlib :

 # revdep-rebuild