Description
The bytecode engine in ClamAV before 0.97.3 allows remote attackers to cause a denial of service (crash) via vectors related to "recursion level" and (1) libclamav/bytecode.c and (2) libclamav/bytecode_api.c.
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 | 0.97.3+dfsg-1 | — |
| Debian 13 | clamav | 0.97.3+dfsg-1 | — |
| Debian 12 | clamav | 0.97.3+dfsg-1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | clamav | 0.99.2-4.1 | openSUSE-SU-2024:10571-1 |
Advisories 1
- openSUSE-SU-2024:10571-1 clamav-0.99.2-4.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- FEDORA-2011-15033 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=746984
- 50183 vdb-entry
- 46717 third-party-advisory
- 46826 third-party-advisory
- FEDORA-2011-15076 vendor-advisory
- FEDORA-2011-15119 vendor-advisory
- USN-1258-1 vendor-advisory
- http://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=commitdiff%3Bh=3d664817f6ef833a17414a4ecea42004c35cc42f
- [oss-security] 20111018 CVE request: recursion level crash in clamav before 0.97.3 mailing-list