SourceFire ClamAV 0.91.2 nsis/bzlib_private.h Remote Code Execution

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability classified as very critical was found in SourceFire ClamAV 0.91.2 (Anti-Malware Software). Affected by this vulnerability is an unknown code in the library nsis/bzlib_private.h. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in the bzip2 decompression algorithm in nsis/bzlib_private.h in ClamAV before 0.92 has unknown impact and remote attack vectors.

The weakness was presented 12/29/2007 (Website). It is possible to read the advisory at This vulnerability is known as CVE-2007-6337. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/10/2019).

The vulnerability scanner Nessus provides a plugin with the ID 30070 (Fedora 8 : clamav-0.92-6.fc8 (2008-0115)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 0.91.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 27063), X-Force (39170), Vulnerability Center (SBV-17287) and Tenable (30070). See 40169 for similar entry.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Unknown
CWE: Unknown
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 30070
Nessus Name: Fedora 8 : clamav-0.92-6.fc8 (2008-0115)
Nessus File: 🔍
Nessus Family: 🔍

OpenVAS ID: 90000
OpenVAS Name: ClamAV < 0.93.1 vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ClamAV 0.91.2


12/19/2007 🔍
12/19/2007 +0 days 🔍
12/29/2007 +9 days 🔍
12/29/2007 +0 days 🔍
12/31/2007 +1 days 🔍
01/08/2008 +8 days 🔍
03/16/2015 +2624 days 🔍
01/01/2017 +657 days 🔍
05/10/2019 +859 days 🔍



Status: Not defined

CVE: CVE-2007-6337 (🔍)
SecurityFocus: 27063 - ClamAV BZ_GET_FAST Bzip2 Decompression Vulnerability
X-Force: 39170
Vulnerability Center: 17287 - ClamAV &lt; 0.92 Unspecified Vulnerability in the bzip2 Decompression Algorithm, High
OSVDB: 42293 - ClamAV nsis/bzlib_private.h bzip2 Decompression Unspecified Issue

See also: 🔍


Created: 03/16/2015 01:43 PM
Updated: 05/10/2019 06:25 PM
Changes: (9) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai advisory_url source_securityfocus_date source_securityfocus_class
Complete: 🔍


No comments yet. Please log in to comment.

Do you know our Splunk app?

Download it now for free!