CVE-2011-2721
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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.37% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.7% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-08-05 21:00Z15 YR AGO
- Last updated
- 2024-08-06 23:08Z2 YR AGO
- Reserved
- 2011-07-11
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 267b93bf0111bc81172c07d0feded69db2069e05b1de16d169c27fab71518ecc
05 Affected products
06 References
- secunia.com45382http://secunia.com/advisories/45382
- lists.fedoraproject.orgFEDORA-2011-15033http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068942.html
- git.clamav.nethttp://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=blob_plain%3Bf=ChangeLog%3Bhb=clamav-0.97.2
- securitytracker.com1025858http://securitytracker.com/id?1025858
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=725694
- www.ubuntu.comUSN-1179-1http://www.ubuntu.com/usn/USN-1179-1
- bugzilla.novell.comhttps://bugzilla.novell.com/show_bug.cgi?id=708263
- secunia.com46717http://secunia.com/advisories/46717
- www.openwall.com[oss-security] 20110726 CVE Request -- Clam AntiVirus -- v0.97.2 -- Off-by-one error by scanning message hasheshttp://www.openwall.com/lists/oss-security/2011/07/26/3
- exchange.xforce.ibmcloud.comclamav-scan-dos(68785)https://exchange.xforce.ibmcloud.com/vulnerabilities/68785
- git.clamav.nethttp://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=commit%3Bh=4842733eb3f09be61caeed83778bb6679141dbc5
- lists.fedoraproject.orgFEDORA-2011-15076http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068940.html
- lists.fedoraproject.orgFEDORA-2011-15119http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068941.html
- www.openwall.com[oss-security] 20110726 Re: CVE Request -- Clam AntiVirus -- v0.97.2 -- Off-by-one error by scanning message hasheshttp://www.openwall.com/lists/oss-security/2011/07/26/13
- www.securityfocus.com48891http://www.securityfocus.com/bid/48891
- wwws.clamav.nethttps://wwws.clamav.net/bugzilla/show_bug.cgi?id=2818
- www.osvdb.org74181http://www.osvdb.org/74181
- www.mandriva.comMDVSA-2011:122http://www.mandriva.com/security/advisories?name=MDVSA-2011:122
07 Fixed in
Debian 12
- clamav Fixed in 0.97.2+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- clamav Fixed in 0.97.2+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- clamav Fixed in 0.97.2+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.