SourceFire ClamAV up to 0.97.1 matcher-hash.c cli_hm_scan numeric error

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability has been found in SourceFire ClamAV up to 0.97.1 (Anti-Malware Software) and classified as problematic. This vulnerability affects the function cli_hm_scan of the file matcher-hash.c. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect availability. CVE summarizes:

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.

The weakness was presented 08/05/2011 by jorgen as Bug 2818 as not defined bug report (Bugzilla). The advisory is available at wwws.clamav.net. This vulnerability was named CVE-2011-2721. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 75451 (openSUSE Security Update : clamav (openSUSE-SU-2011:0940-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

Upgrading to version 0.97.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (68785) and Tenable (75451).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 75451
Nessus Name: openSUSE Security Update : clamav (openSUSE-SU-2011:0940-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 863427
OpenVAS Name: Fedora Update for clamav FEDORA-2011-10053
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ClamAV 0.97.2
Patch: 4842733eb3f09be61caeed83778bb6679141dbc5

Timelineinfo

07/11/2011 🔍
07/26/2011 +15 days 🔍
08/05/2011 +10 days 🔍
08/05/2011 +0 days 🔍
08/05/2011 +0 days 🔍
08/16/2011 +11 days 🔍
06/13/2014 +1032 days 🔍
03/23/2015 +283 days 🔍
11/17/2021 +2431 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: Bug 2818
Researcher: jorgen
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-2721 (🔍)
OVAL: 🔍

X-Force: 68785
Vulnerability Center: 32722 - ClamAV before 0.97.2 Off-By-One Error in cli_hm_scan Function Allows Remote DoS Vulnerability, Medium
SecurityFocus: 48891 - ClamAV Hash Manager Off-By-One Denial of Service Vulnerability
Secunia: 45382
OSVDB: 74181

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/17/2021 09:57
Changes: 03/23/2015 16:50 (65), 05/10/2019 18:32 (10), 11/17/2021 09:57 (8)
Complete: 🔍

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