Description
The OLE2 unpacker in clamd in Clam AntiVirus (ClamAV) 0.87-1 allows remote attackers to cause a denial of service (segmentation fault) via a DOC file with an invalid property tree, which triggers an infinite recursion in the ole2_walk_property_tree function.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | clamav | 0.103.3-1.4 | openSUSE-SU-2024:10685-1 |
Advisories 3
- DSA-887-1 clamav - several Debian Security (DSA / DLA) · Mar 9, 2026
- DTSA-21-1 clamav - Denial of service vulnerabilities and buffer overflow Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10685-1 clamav-0.103.3-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 17451 third-party-advisory
- GLSA-200511-04 vendor-advisory
- 17501 third-party-advisory
- 17184 third-party-advisory
- 15101 vdb-entry
- MDKSA-2005:205 vendor-advisory
- 17559 third-party-advisory
- 17448 third-party-advisory
- 20536 vdb-entry
- http://sourceforge.net/project/shownotes.php?release_id=368319
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333566
- DSA-887 vendor-advisory
- 1015154 vdb-entry