CVE-2011-2721

Home/CVE/Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attack

CVE

Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attack

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.

MEDIUM · CVSS 5 EPSS 0.07432

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EPSS percentile: top 8% of all CVEs by exploitation likelihood

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Affected Products & Versions

clamav<= 0.97.1

clamavall versions

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

producthighRelevant ClamAV Message

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Scoring & Timeline

MEDIUM · CVSS v2 (legacy) · secalert@redhat.com

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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Published to NVD05 Aug 2011 · 09:55 PM

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Vendor Advisories

suse-csafopenSUSE-SU-2024:10571-1

usnUSN-1179-1

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://git.clamav.net/gitweb?p=clamav-devel.git

http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068940.html

http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068941.html

http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068942.html

http://secunia.com/advisories/45382Vendor Advisory

Show all 18 references

http://secunia.com/advisories/46717

http://securitytracker.com/id?1025858

http://www.mandriva.com/security/advisories?name=MDVSA-2011:122

http://www.openwall.com/lists/oss-security/2011/07/26/13Patch

http://www.openwall.com/lists/oss-security/2011/07/26/3Patch

http://www.osvdb.org/74181

http://www.securityfocus.com/bid/48891

http://www.ubuntu.com/usn/USN-1179-1

https://bugzilla.novell.com/show_bug.cgi?id=708263Patch

https://bugzilla.redhat.com/show_bug.cgi?id=725694Patch

https://exchange.xforce.ibmcloud.com/vulnerabilities/68785

https://wwws.clamav.net/bugzilla/show_bug.cgi?id=2818Patch

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