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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6.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Sophos Anti-Virus up to 6.0.4. This affects an unknown part of the component CHM Archive Handler. Such manipulation leads to resource management. This vulnerability is uniquely identified as CVE-2006-5645. Moreover, an exploit is present. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Sophos Anti-Virus up to 6.0.4 (Anti-Malware Software) and classified as critical. Affected by this issue is an unknown part of the component CHM Archive Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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 disclosed 10/30/2006 by Damian Put (Titon) with iDefense (Website). The advisory is available at sophos.com. This vulnerability is handled as CVE-2006-5645 since 11/01/2006. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.

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†). The entries VDB-2641, VDB-2644, VDB-2643 and VDB-2731 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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 🔍
04/15/2025 +6739 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-100-2642
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: 04/15/2025 00:27
Changes: 10/31/2006 13:14 (70), 04/22/2018 13:16 (8), 04/15/2025 00:27 (17)
Complete: 🔍
Cache ID: 216:B6B:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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