Vulnerability Monitor

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CVE-2005-1530

Sophos Anti-Virus 5.0.1, with "Scan inside archive files" enabled, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a Bzip2 archive with a large 'Extra field length' value.

Security Impact Summary

CVE-2005-1530 is a security vulnerability that . Impacting 5 products from sophos, from sophos, from sophos and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2005, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2005-07-19T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	sophos	sophos_anti-virus	3.4.6	Yes
Application	sophos	sophos_anti-virus	3.78	Yes
Application	sophos	sophos_anti-virus	3.78d	Yes
Application	sophos	sophos_anti-virus	3.79	Yes
Application	sophos	sophos_anti-virus	3.80	Yes
Application	sophos	sophos_anti-virus	3.81	Yes
Application	sophos	sophos_anti-virus	3.82	Yes
Application	sophos	sophos_anti-virus	3.83	Yes
Application	sophos	sophos_anti-virus	3.84	Yes
Application	sophos	sophos_anti-virus	3.85	Yes
Application	sophos	sophos_anti-virus	3.86	Yes
Application	sophos	sophos_anti-virus	3.90	Yes
Application	sophos	sophos_anti-virus	3.91	Yes
Application	sophos	sophos_anti-virus	5.0.1	Yes
Application	sophos	sophos_mailmonitor	2.0	Yes
Application	sophos	sophos_mailmonitor	2.1	Yes
Application	sophos	sophos_mailmonitor_for_notes_domino	*	Yes
Application	sophos	sophos_puremessage_anti-virus	4.6	Yes
Application	sophos	sophos_small_business_suite	1.0	Yes

References

http://securitytracker.com/id?1014488 ([email protected])
http://www.idefense.com/application/poi/display?id=283&type=vulnerabilities&flashstatus=true Patch, Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/14270 Exploit, Patch ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/21373 ([email protected])
http://securitytracker.com/id?1014488 (af854a3a-2127-422b-91ae-364da2661108)
http://www.idefense.com/application/poi/display?id=283&type=vulnerabilities&flashstatus=true Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/14270 Exploit, Patch (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/21373 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For sophos's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.