Vulnerability Monitor

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CVE-2005-0337

Postfix 2.1.3, when /proc/net/if_inet6 is not available and permit_mx_backup is enabled in smtpd_recipient_restrictions, allows remote attackers to bypass e-mail restrictions and perform mail relaying by sending mail to an IPv6 hostname.

Security Impact Summary

CVE-2005-0337 is a security vulnerability that . Impacting 4 products from wietse_venema, from redhat, from redhat and 1 other, 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

2005-05-02T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

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

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

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	wietse_venema	postfix	2.1.3	Yes
Operating System	redhat	enterprise_linux	4.0	Yes
Operating System	redhat	enterprise_linux	4.0	Yes
Operating System	redhat	enterprise_linux	4.0	Yes
Operating System	redhat	enterprise_linux_desktop	4.0	Yes
Operating System	suse	suse_linux	8.0	Yes
Operating System	suse	suse_linux	8.0	Yes
Operating System	suse	suse_linux	8.1	Yes
Operating System	suse	suse_linux	8.2	Yes
Operating System	suse	suse_linux	9.0	Yes
Operating System	suse	suse_linux	9.0	Yes
Operating System	suse	suse_linux	9.1	Yes
Operating System	suse	suse_linux	9.2	Yes

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=267837 Vendor Advisory ([email protected])
http://marc.info/?l=bugtraq&m=110763358832637&w=2 ([email protected])
http://secunia.com/advisories/14137/ Patch ([email protected])
http://www.redhat.com/support/errata/RHSA-2005-152.html ([email protected])
http://www.securityfocus.com/bid/12445 Patch ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/19218 ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11339 ([email protected])
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=267837 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://marc.info/?l=bugtraq&m=110763358832637&w=2 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/14137/ Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2005-152.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/12445 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/19218 (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11339 (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 wietse_venema'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.