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zlib Denial of Service Vulnerability
Secunia Advisory: SA11129
Release Date: 2004-08-30
Last Update: 2004-10-11
Popularity: 15,662 views

Critical:
Moderately critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

Software:zlib 1.x

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CVE reference:CVE-2004-0797


Description:
A vulnerability has been reported in zlib, which can be exploited by malicious people to conduct a DoS (Denial of Service) against a vulnerable application.

The vulnerability is caused due to insufficient error handling in the functions "inflate()" and "inflateBack()". This can be exploited to cause a DoS on any application linked to the zlib library.

The vulnerability has been reported in version 1.2.1. Other versions may also be affected.

Solution:
Update to version 1.2.2.

Provided and/or discovered by:
Johan Thelmén

Changelog:
2004-10-01: Added link to US-CERT vulnerability note.
2004-10-11: Updated "Solution" section.

Other References:
US-CERT VU#238678:
http://www.kb.cert.org/vuls/id/238678


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