Back
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…
Medium5.0EPSS 3.4%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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 not properly handled during certain hash calculations.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 3.4% · top 11% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (18)
- 45382 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2011-15033 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=blob_plain%3Bf=ChangeLog%3Bhb=clamav-0.97.2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1025858 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=725694 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-1179-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.novell.com/show_bug.cgi?id=708263 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 46717 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20110726 CVE Request -- Clam AntiVirus -- v0.97.2 -- Off-by-one error by scanning message hashes (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- clamav-scan-dos(68785) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=commit%3Bh=4842733eb3f09be61caeed83778bb6679141dbc5 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2011-15076 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2011-15119 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [oss-security] 20110726 Re: CVE Request -- Clam AntiVirus -- v0.97.2 -- Off-by-one error by scanning message hashes (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 48891 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://wwws.clamav.net/bugzilla/show_bug.cgi?id=2818 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 74181 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- MDVSA-2011:122 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2011-2721)Record last updated .