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[ GLSA 200507-25 ] Clam AntiVirus: Integer overflows
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GLSA
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Joined: 12 May 2004
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PostPosted: Tue Jul 26, 2005 9:01 pm    Post subject: [ GLSA 200507-25 ] Clam AntiVirus: Integer overflows Reply with quote

Gentoo Linux Security Advisory

Title: Clam AntiVirus: Integer overflows (GLSA 200507-25)
Severity: high
Exploitable: remote
Date: July 26, 2005
Updated: August 11, 2005
Bug(s): #100178
ID: 200507-25

Synopsis

Clam AntiVirus is vulnerable to integer overflows when handling several file formats, potentially resulting in the execution of arbitrary code.

Background

Clam AntiVirus is a GPL anti-virus toolkit, designed for integration with mail servers to perform attachment scanning. Clam AntiVirus also provides a command line scanner and a tool for fetching updates of the virus database.

Affected Packages

Package: app-antivirus/clamav
Vulnerable: < 0.86.2
Unaffected: >= 0.86.2
Architectures: All supported architectures


Description

Neel Mehta and Alex Wheeler discovered that Clam AntiVirus is vulnerable to integer overflows when handling the TNEF, CHM and FSG file formats.

Impact

By sending a specially-crafted file an attacker could execute arbitrary code with the permissions of the user running Clam AntiVirus.

Workaround

There is no known workaround at this time.

Resolution

All Clam AntiVirus users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.86.2"


References

CAN-2005-2450
Clam AntiVirus: Release Notes


Last edited by GLSA on Sun May 07, 2006 4:58 pm; edited 1 time in total
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