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[ GLSA 200408-26 ] zlib: Denial of service vulnerability
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GLSA
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Joined: 13 Jun 2003
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PostPosted: Fri Aug 27, 2004 7:08 pm    Post subject: [ GLSA 200408-26 ] zlib: Denial of service vulnerability Reply with quote

Gentoo Linux Security Advisory

Title: zlib: Denial of service vulnerability (GLSA 200408-26)
Severity: normal
Exploitable: remote
Date: August 27, 2004
Updated: May 22, 2006
Bug(s): #61749
ID: 200408-26

Synopsis

The zlib library contains a Denial of Service vulnerability.

Background

zlib is a general-purpose data-compression library.

Affected Packages

Package: sys-libs/zlib
Vulnerable: <= 1.2.1-r2
Unaffected: >= 1.2.1-r3
Architectures: All supported architectures


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:
Code:
# 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 :
Code:
# revdep-rebuild


References

OpenPKG-SA-2004.038-zlib
CVE-2004-0797


Last edited by GLSA on Tue May 23, 2006 4:17 am; edited 2 times in total
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