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Sophos Anti-Virus Petite Plugin Denial of Service Vulnerability
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Secunia Advisory:
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SA22635
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Release Date:
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2006-10-30
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Last Update:
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2006-11-01
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Popularity:
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7,738 views
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Critical:
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Moderately critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Partial Fix
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| Software: | Sophos Anti-Virus 4.x
Sophos Anti-Virus 5.x
Sophos Anti-Virus for Windows 6.x
Sophos Anti-Virus Small Business Edition
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| CVE reference: | CVE-2006-4839
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Description:
A vulnerability has been reported in Sophos Anti-Virus, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an unspecified error when processing files compressed with Petite that contain a large number of sections. This can be exploited to cause large amounts of memory being allocated, thus exhausting system resources via a specially crafted executable file.
Please see the vendor's advisory for a list of affected versions.
Solution:
Updates are available for all products, but Sophos Anti-Virus for Macintosh (available in December 2006).
Provided and/or discovered by:
Damian Put
Changelog:
2006-11-01: Updated "Description" section. Added link to iDefense advisory. Added CVE reference.
Original Advisory:
Sophos:
http://www.sophos.com/support/knowledgebase/article/7609.html
iDefense:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=438
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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