Sophos Anti-Virus up to 6.0.4 CHM Archive resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Sophos Anti-Virus up to 6.0.4. This vulnerability affects unknown code of the component CHM Archive Handler. Performing a manipulation results in resource management. This vulnerability was named CVE-2006-5645. In addition, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Sophos Anti-Virus up to 6.0.4 (Anti-Malware Software). It has been classified as critical. This affects an unknown code of the component CHM Archive Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

Sophos Anti-Virus and Endpoint Security before 6.0.5, Anti-Virus for Linux before 5.0.10, and other platforms before 4.11, when "Enabled scanning of archives" is set, allows remote attackers to cause a denial of service (infinite loop) via a malformed RAR archive with an Archive Header section with the head_size and pack_size fields set to zero.

The weakness was presented 10/30/2006 by Damian Put (Titon) with iDefense (Website). It is possible to read the advisory at sophos.com. This vulnerability is uniquely identified as CVE-2006-5645 since 11/01/2006. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at sophos.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Exploit-DB (2912), SecurityFocus (BID 20816†), Secunia (SA22591†) and SecurityTracker (ID 1017132†). See VDB-2642, VDB-2641, VDB-2644 and VDB-2731 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: sophos.com

Timelineinfo

10/30/2006 🔍
10/30/2006 +0 days 🔍
10/30/2006 +0 days 🔍
10/30/2006 +0 days 🔍
10/31/2006 +1 days 🔍
11/01/2006 +1 days 🔍
11/01/2006 +0 days 🔍
04/16/2025 +6741 days 🔍

Sourcesinfo

Vendor: sophos.com

Advisory: sophos.com
Researcher: Damian Put (Titon)
Organization: iDefense
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-5645 (🔍)
GCVE (CVE): GCVE-0-2006-5645
GCVE (VulDB): GCVE-100-2643
SecurityFocus: 20816 - Sophos Antivirus Multiple Denial of Service and Memory Corruption Vulnerabilities
Secunia: 22591 - Sophos Anti-Virus RAR and CHM Denial of Service Vulnerabilities, Moderately Critical
SecurityTracker: 1017132
Vupen: ADV-2006-4239

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

Entryinfo

Created: 10/31/2006 13:14
Updated: 04/16/2025 14:39
Changes: 10/31/2006 13:14 (70), 04/22/2018 13:17 (7), 04/16/2025 14:39 (18)
Complete: 🔍
Cache ID: 216:B6B:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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