CVE-2007-2650

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2007-05-14 · updated 2026-06-16
Weakness: CWE-400

Description

The OLE2 parser in Clam AntiVirus (ClamAV) allows remote attackers to cause a denial of service (resource consumption) via an OLE2 file with (1) a large property size or (2) a loop in the FAT file block chain that triggers an infinite loop, as demonstrated via a crafted DOC file.

Affected products

Cisco ClamAV: before 0.90.3 — fixed in 0.90.3
Debian Linux: 3.1, 4.0

How to fix

Upgrade to a fixed version: Cisco ClamAV 0.90.3. Check the vendor advisory for mitigations.

References

http://article.gmane.org/gmane.comp.security.virus.clamav.devel/2853
http://kolab.org/security/kolab-vendor-notice-15.txt
http://lurker.clamav.net/message/20070418.111144.0df6c5d3.en.html
http://secunia.com/advisories/25244
http://secunia.com/advisories/25523
http://secunia.com/advisories/25525
http://secunia.com/advisories/25553
http://secunia.com/advisories/25558
http://secunia.com/advisories/25688
http://secunia.com/advisories/25796
http://security.gentoo.org/glsa/glsa-200706-05.xml
http://svn.clamav.net/svn/clamav-devel/trunk/ChangeLog

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