Description
libclamav in ClamAV (aka Clam AntiVirus), as used in Advanced Malware Protection (AMP) on Cisco Email Security Appliance (ESA) devices before 9.7.0-125 and Web Security Appliance (WSA) devices before 9.0.1-135 and 9.1.x before 9.1.1-041, allows remote attackers to cause a denial of service (AMP process restart) via a crafted document, aka Bug IDs CSCuv78533 and CSCuw60503.
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 ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | clamav | 0.99+dfsg-1 | — |
| Debian 13 | clamav | 0.99+dfsg-1 | — |
| Debian 12 | clamav | 0.99+dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | clamav | 0.99.2+dfsg-0ubuntu0.16.04.1 | USN-3093-1 |
| Ubuntu 14.04 LTS | clamav | 0.99.2+addedllvm-0ubuntu0.14.04.1 | USN-3093-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | clamav-1.5 | 1.5.1-r0 | — |
Advisories 1
- USN-3093-1 clamav vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
References
- 90968 vdb-entry
- https://github.com/vrtadmin/clamav-devel/blob/master/ChangeLog
- USN-3093-1 vendor-advisory
- 1035993 vdb-entry
- 20160531 Cisco ESA and WSA AMP ClamAV Denial of Service Vulnerability vendor-advisory
- 1035994 vdb-entry