CVE-2005-0337

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2005-05-02 · updated 2026-06-16

Description

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.

Affected products

Red Hat Enterprise Linux: 4.0
RedHat Enterprise Linux Desktop: 4.0
Suse Linux: 8.0, 8.1, 8.2, 9.0, 9.1, 9.2
Wietse Venema Postfix: 2.1.3

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=267837
http://marc.info/?l=bugtraq&m=110763358832637&w=2
http://secunia.com/advisories/14137/
http://www.redhat.com/support/errata/RHSA-2005-152.html
http://www.securityfocus.com/bid/12445
https://exchange.xforce.ibmcloud.com/vulnerabilities/19218
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11339
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=267837
http://marc.info/?l=bugtraq&m=110763358832637&w=2
http://secunia.com/advisories/14137/
http://www.redhat.com/support/errata/RHSA-2005-152.html
http://www.securityfocus.com/bid/12445

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