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[ GLSA 200605-03 ] ClamAV: Buffer overflow in Freshclam
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GLSA
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PostPosted: Tue May 02, 2006 8:26 pm    Post subject: [ GLSA 200605-03 ] ClamAV: Buffer overflow in Freshclam Reply with quote

Gentoo Linux Security Advisory

Title: ClamAV: Buffer overflow in Freshclam (GLSA 200605-03)
Severity: normal
Exploitable: remote
Date: May 02, 2006
Bug(s): #131791
ID: 200605-03

Synopsis

Freshclam is vulnerable to a buffer overflow that could lead to execution of arbitrary code.

Background

ClamAV is a GPL virus scanner. Freshclam is a utility to download virus signature updates.

Affected Packages

Package: app-antivirus/clamav
Vulnerable: < 0.88.2
Unaffected: >= 0.88.2
Architectures: All supported architectures


Description

Ulf Harnhammar and an anonymous German researcher discovered that Freshclam fails to check the size of the header data returned by a webserver.

Impact

By enticing a user to connect to a malicious webserver an attacker could cause the execution of arbitrary code.

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-0.88.2"


References

CVE-2006-1989


Last edited by GLSA on Thu May 31, 2007 4:17 am; edited 3 times in total
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