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Perl Compress::Raw::Zlib Module Off-by-One Vulnerability
Secunia Advisory: SA35422
Release Date: 2009-06-11
Popularity: 1,833 views

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

Software:Compress::Raw::Zlib 2.x (module for Perl)

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
A vulnerability has been reported in the Compress::Raw::Zlib module for Perl, which can be exploited by malicious people to cause a DoS (Denial of Service) or to potentially compromise an application using the module.

The vulnerability is caused due to an off-by-one error within the "inflate()" function in Zlib.xs. This can be exploited to cause a heap-based buffer overflow with a zero byte when specially crafted compressed data is processed.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in versions prior to 2.017.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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