ClamAV 0.88.6 denial of service

HistoryDiffrelatejsonxmlCTI

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in ClamAV 0.88.6. It has been classified as problematic. This affects an unknown part. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-2006-6406. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ClamAV 0.88.6 (Anti-Malware Software). This affects an unknown code block. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on integrity. The summary by CVE is:

Clam AntiVirus (ClamAV) 0.88.6 allows remote attackers to bypass virus detection by inserting invalid characters into base64 encoded content in a multipart/mixed MIME file, as demonstrated with the EICAR test file.

The weakness was disclosed 12/09/2006 by Hendrik Weimer (Website). The advisory is shared at vupen.com. This vulnerability is uniquely identified as CVE-2006-6406. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 23912 (Debian DSA-1238-1 : clamav - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165109 (SUSE Security Update for ClamAV (SUSE-SA:2006:078)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (31017), Tenable (23912), SecurityFocus (BID 21461†), Secunia (SA23362†) and Vulnerability Center (SBV-13558†). The entries VDB-33788, VDB-33720, VDB-33719 and VDB-33718 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Anti-Malware Software

Name

ClamAV

Version

0.88.6

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 23912
Nessus Name: Debian DSA-1238-1 : clamav - several vulnerabilities
Nessus File: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 57737
OpenVAS Name: Debian Security Advisory DSA 1238-1 (clamav)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2006 🔍
12/09/2006 +3 days 🔍
12/09/2006 +0 days 🔍
12/09/2006 +0 days 🔍
12/18/2006 +9 days 🔍
12/24/2006 +6 days 🔍
03/12/2015 +3000 days 🔍
03/03/2025 +3643 days 🔍

Sourcesinfo

Advisory: vupen.com⛔
Researcher: Hendrik Weimer
Status: Not defined

CVE: CVE-2006-6406 (🔍)
GCVE (CVE): GCVE-0-2006-6406
GCVE (VulDB): GCVE-100-33717
X-Force: 31017
SecurityFocus: 21461 - Multiple Security Products MIME Encoding Content Filter Bypass Weakness
Secunia: 23362
Vulnerability Center: 13558 - ClamAV 0.88.6 Remote Virus Detection Bypass, Medium

See also: 🔍

Entryinfo

Created: 03/12/2015 22:21
Updated: 03/03/2025 00:02
Changes: 03/12/2015 22:21 (60), 05/10/2019 18:22 (9), 03/03/2025 00:02 (17)
Complete: 🔍
Cache ID: 216:232:103

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