SourceFire ClamAV up to 0.94.x RAR Archive input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical has been found in SourceFire ClamAV up to 0.94.x (Anti-Malware Software). Affected is an unknown code of the component RAR Archive Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 04/03/2009 by Thierry Zoller (Website). The advisory is shared for download at This vulnerability is traded as CVE-2009-1241 since 04/03/2009. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 41486 (SuSE 10 Security Update : ClamAV (ZYPP Patch Number 6144)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116609 (Apple Mac OS X Security Update 2009-005 Not Installed (APPLE-SA-2009-09-10-2)).

Upgrading to version 0.95.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (49635) and Tenable (41486). Similar entries are available at 4033, 47872, 47871 and 47625.







CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
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NVD Base Score: 🔍


Class: Input validation
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 41486
Nessus Name: SuSE 10 Security Update : ClamAV (ZYPP Patch Number 6144)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 800554
OpenVAS Name: ClamAV Multiple Vulnerabilities (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ClamAV 0.95.0


04/02/2009 🔍
04/02/2009 +0 days 🔍
04/03/2009 +1 days 🔍
04/03/2009 +0 days 🔍
04/03/2009 +0 days 🔍
04/07/2009 +4 days 🔍
09/11/2009 +157 days 🔍
09/24/2009 +13 days 🔍
03/17/2015 +2000 days 🔍
08/09/2021 +2337 days 🔍



Researcher: Thierry Zoller
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-1241 (🔍)
X-Force: 49635
Vulnerability Center: 21496 - ClamAV < 0.95 Remote Malware-Detection Bypass via a Malformed RAR File, High
SecurityFocus: 34344 - ClamAV RAR File Scan Evasion Vulnerability
Secunia: 36701 - Apple Mac OS X Security Update Fixes Multiple Vulnerabilities, Highly Critical
Vupen: ADV-2009-0934

See also: 🔍


Created: 03/17/2015 11:38 PM
Updated: 08/09/2021 11:51 AM
Changes: 03/17/2015 11:38 PM (66), 05/10/2019 06:28 PM (14), 08/09/2021 11:51 AM (2)
Complete: 🔍


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