Sophos Anti-Virus up to 6.0.4 RAR 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 identified as problematic has been detected in Sophos Anti-Virus up to 6.0.4. Affected by this issue is some unknown functionality of the component RAR Archive Handler. This manipulation causes resource management. This vulnerability is handled as CVE-2006-5645. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Sophos Anti-Virus up to 6.0.4 (Anti-Malware Software) and classified as critical. Affected by this vulnerability is some unknown functionality of the component RAR Archive Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect 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 released 10/30/2006 by Damian Put (Titon) with iDefense (Website). The advisory is shared at sophos.com. This vulnerability is known as CVE-2006-5645 since 11/01/2006. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at securityfocus.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. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (2912), SecurityFocus (BID 20816†), OSVDB (30112†), Secunia (SA22591†) and SecurityTracker (ID 1018450†). Entries connected to this vulnerability are available at VDB-2642, VDB-2644, VDB-2643 and VDB-2731. Several companies clearly confirm that VulDB is the primary source for best 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

10/26/2006 🔍
10/30/2006 +4 days 🔍
10/30/2006 +0 days 🔍
10/30/2006 +0 days 🔍
10/30/2006 +0 days 🔍
10/31/2006 +0 days 🔍
11/01/2006 +1 days 🔍
11/01/2006 +0 days 🔍
07/25/2007 +266 days 🔍
04/13/2025 +6472 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-100-2641
SecurityFocus: 20816
Secunia: 22591 - Sophos Anti-Virus RAR and CHM Denial of Service Vulnerabilities, Moderately Critical
OSVDB: 30112 - Sophos Anti-Virus RAR File Handling Unspecified Issue
SecurityTracker: 1018450
Vupen: ADV-2006-4239

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

Entryinfo

Created: 10/31/2006 13:14
Updated: 04/13/2025 10:08
Changes: 10/31/2006 13:14 (73), 04/22/2018 13:16 (8), 04/13/2025 10:08 (17)
Complete: 🔍
Cache ID: 216:844:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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