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[ GLSA 200704-21 ] ClamAV: Multiple vulnerabilities
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PostPosted: Tue Apr 24, 2007 4:26 pm    Post subject: [ GLSA 200704-21 ] ClamAV: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: ClamAV: Multiple vulnerabilities (GLSA 200704-21)
Severity: high
Exploitable: remote
Date: April 24, 2007
Bug(s): #174375
ID: 200704-21

Synopsis

Multiple vulnerabilities have been discovered in ClamAV allowing for the remote execution of arbitrary code.

Background

ClamAV is a GPL virus scanner.

Affected Packages

Package: app-antivirus/clamav
Vulnerable: < 0.90.2
Unaffected: >= 0.90.2
Architectures: All supported architectures


Description

iDefense Labs have reported a stack-based buffer overflow in the cab_unstore() function when processing negative values in .cab files. Multiple file descriptor leaks have also been reported in chmunpack.c, pdf.c and dblock.c when processing .chm files.

Impact

A remote attacker could send a specially crafted CHM file to the scanner, possibly resulting in the remote execution of arbitrary code with the privileges of the user running ClamAV.

Workaround

There is no known workaround at this time.

Resolution

All ClamAV users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.90.2"


References

CVE-2007-1745
CVE-2007-1997
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