ClamAV up to 0.88.3 pefromupx memory corruption

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.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in ClamAV up to 0.88.3. This affects the function pefromupx. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2006-4018. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in ClamAV up to 0.88.3 (Anti-Malware Software). It has been classified as critical. This affects the function pefromupx. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the pefromupx function in libclamav/upx.c in Clam AntiVirus (ClamAV) 0.81 through 0.88.3 allows remote attackers to execute arbitrary code via a crafted UPX packed file containing sections with large rsize values.

The weakness was disclosed 08/08/2006 by Damian Put (Website). The advisory is shared at overflow.pl. This vulnerability is uniquely identified as CVE-2006-4018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 22199 (GLSA-200608-13 : ClamAV: Heap buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165134 (SUSE Security Update for ClamAV (SUSE-SA:2006:046)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9047.

The vulnerability is also documented in the databases at X-Force (28286), Exploit-DB (28348), Tenable (22199), SecurityFocus (BID 19381†) and Secunia (SA21497†). 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

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 22199
Nessus Name: GLSA-200608-13 : ClamAV: Heap buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 57297
OpenVAS Name: Debian Security Advisory DSA 1153-1 (clamav)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

08/07/2006 🔍
08/08/2006 +0 days 🔍
08/08/2006 +0 days 🔍
08/08/2006 +0 days 🔍
08/08/2006 +0 days 🔍
08/10/2006 +2 days 🔍
08/15/2006 +5 days 🔍
03/12/2015 +3131 days 🔍
06/18/2025 +3751 days 🔍

Sourcesinfo

Advisory: overflow.pl
Researcher: Damian Put
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-4018 (🔍)
GCVE (CVE): GCVE-0-2006-4018
GCVE (VulDB): GCVE-100-31677
X-Force: 28286
SecurityFocus: 19381 - Clam Anti-Virus ClamAV UPX Compressed PE File Heap Buffer Overflow Vulnerability
Secunia: 21497
SecurityTracker: 1016645
Vulnerability Center: 12522 - Clam AntiVirus Heap-Based Buffer Overflow Via a Crafted UPX File, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/12/2015 15:51
Updated: 06/18/2025 19:37
Changes: 03/12/2015 15:51 (61), 05/10/2019 18:21 (13), 07/13/2021 07:57 (3), 07/13/2021 08:02 (1), 01/13/2025 06:17 (19), 01/18/2025 02:02 (3), 02/03/2025 04:20 (1), 06/18/2025 19:37 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.