Security Advisory SA45900 - SWI-Prolog XPCE Component "LZWReadByte()" Buffer Overflow Vulnerability

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Secunia Advisory SA45900

SWI-Prolog XPCE Component "LZWReadByte()" Buffer Overflow Vulnerability

Secunia Advisory

SA45900

Release Date

2011-09-09

Popularity

1,319 view

Comments

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Criticality level

Moderately critical

Impact

System access

Where

From remote

Authentication level

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Report reliability

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Solution Status

Vendor Workaround

Systems affected

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Approve distribution

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Software:

SWI-Prolog 5.x

Secunia CVSS Score

This information is available to Secunia VIM Customers

CVE Reference(s)

CVE-2011-2896 CVSS score available to Secunia VIM customers

Description

A vulnerability has been reported in SWI-Prolog, which can be exploited by malicious people to potentially compromise a user's system.

The vulnerability is caused due to a boundary error in the XPCE component within the "LZWReadByte()" function (img/gifread.c) and can be exploited to cause a buffer overflow via specially crafted GIF images.

The vulnerability is reported in version 5.10.2. Other versions may also be affected.

Solution
Fixed in the GIT repository.

Provided and/or discovered by
Red Hat Security Response Team

Original Advisory
SWI-Prolog:
http://www.swi-prolog.org/bugzilla/show_bug.cgi?id=7#c4
http://www.swi-prolog.org/git/packages/xpce.git/commitdiff/bb328029beb148691edc031d9db9cf0a503c8247
http://www.swi-prolog.org/git/packages/xpce.git/commitdiff/30fbc4e030cbef5871e1b96c31458116ce3e2ee8

Red Hat:
https://bugzilla.redhat.com/show_bug.cgi?id=727800

Deep Links
Links available to Secunia VIM customers

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Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: SWI-Prolog XPCE Component "LZWReadByte()" Buffer Overflow Vulnerability

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Secunia Advisory SA45900

SWI-Prolog XPCE Component "LZWReadByte()" Buffer Overflow Vulnerability

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