CVE catalog
CVE-2011-2721
clamav: CVE-2011-2721
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.38% · Oct 25, 2026
Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attackers to cause a denial of service (daemon crash) via an e-mail message that is not properly handled during certain hash calculations.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | clamav | sid | 1.4.6+dfsg-1 | fixed |
| Debian | clamav | forky | 1.4.6+dfsg-1 | fixed |
| Debian | clamav | trixie | 1.4.3+dfsg-1 | fixed |
| Debian | clamav | bookworm | 1.4.3+dfsg-1~deb12u2 | fixed |
| Debian | clamav | bookworm-security | 1.4.6+dfsg-0+deb12u1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | clamav | source | sid | 0.97.2+dfsg-1 | not yet assigned | Not reported | [635599] |
| Debian | clamav | source | forky | 0.97.2+dfsg-1 | not yet assigned | Not reported | [635599] |
| Debian | clamav | source | trixie | 0.97.2+dfsg-1 | not yet assigned | Not reported | [635599] |
| Debian | clamav | source | bookworm | 0.97.2+dfsg-1 | not yet assigned | Not reported | [635599] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [clamav]Fixed
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [clamav-base]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [clamav-daemon]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [clamav-doc]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [clamav-docs]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [clamav-freshclam]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [clamav-milter]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [clamav-testfiles]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· all · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [clamdscan]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [libclamav12]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
- [libclamav-dev]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1~deb12u2· amd64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
1.4.3+dfsg-1~deb12u2· arm64 · bookwormFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · bookworm; dsa · clamav · debian · 12
[Debian 13 (Trixie)]
- [clamav]Fixed
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
- [clamav-base]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· all · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· all · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
- [clamav-daemon]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
- [clamav-doc]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· all · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· all · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
- [clamav-docs]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· all · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· all · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
- [clamav-freshclam]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
- [clamav-milter]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
- [clamav-testfiles]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· all · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· all · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
- [clamdscan]Fixed
Source package: [clamav]
Details (2)
1.4.3+dfsg-1· amd64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
1.4.3+dfsg-1· arm64 · trixieFixed · Fixed:
0.97.2+dfsg-1dsa · clamav · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_10571-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2011-2721]
- [https://security-tracker.debian.org/tracker/CVE-2011-2721]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]