National Cyber Awareness System
Vulnerability Summary for CVE-2011-2721
Original release date:08/05/2011
Last revised:11/22/2011
Source:
US-CERT/NIST
Overview
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.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: https://wwws.clamav.net/bugzilla/show_bug.cgi?id=2818
Type: Patch Information
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=725694
Type: Patch Information
External Source: CONFIRM
Name: https://bugzilla.novell.com/show_bug.cgi?id=708263
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20110726 CVE Request -- Clam AntiVirus -- v0.97.2 -- Off-by-one error by scanning message hashes
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20110726 Re: CVE Request -- Clam AntiVirus -- v0.97.2 -- Off-by-one error by scanning message hashes
Type: Patch Information
External Source: CONFIRM
Name: http://git.clamav.net/gitweb?p=clamav-devel.git;a=commit;h=4842733eb3f09be61caeed83778bb6679141dbc5
Type: Patch Information
External Source: XF
Name: clamav-scan-dos(68785)
External Source: UBUNTU
Name: USN-1179-1
External Source: BID
Name: 48891
External Source: OSVDB
Name: 74181
External Source: MANDRIVA
Name: MDVSA-2011:122
External Source: SECTRACK
Name: 1025858
External Source: SECUNIA
Name: 46717
External Source: SECUNIA
Name: 45382
Type: Advisory
External Source: FEDORA
Name: FEDORA-2011-15033
External Source: FEDORA
Name: FEDORA-2011-15119
External Source: FEDORA
Name: FEDORA-2011-15076
External Source: CONFIRM
Name: http://git.clamav.net/gitweb?p=clamav-devel.git;a=blob_plain;f=ChangeLog;hb=clamav-0.97.2