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TI-2005-00302 Aliases CVE-2005-0337GHSA-5rxq-6r3q-5xj6

Postfix 2.1.3, when /proc/net/if_inet6 is not available and permit_mx_backup is enabled…

Priority LOW 38Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.02806 86th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:wietse_venema:postfix:2.1.3:*:*:*:*:*:*:*2.1.3VulnerableWietse Venema
cpe:2.3:o:redhat:enterprise_linux:4.0:*:advanced_server:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:4.0:*:enterprise_server:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:4.0:*:workstation:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:suse:suse_linux:8.0:*:*:*:*:*:*:*8.0VulnerableSUSE
cpe:2.3:o:suse:suse_linux:8.0:*:i386:*:*:*:*:*8.0VulnerableSUSE
cpe:2.3:o:suse:suse_linux:8.1:*:*:*:*:*:*:*8.1VulnerableSUSE
cpe:2.3:o:suse:suse_linux:8.2:*:*:*:*:*:*:*8.2VulnerableSUSE
cpe:2.3:o:suse:suse_linux:9.0:*:*:*:*:*:*:*9.0VulnerableSUSE
  • cpe:2.3:a:wietse_venema:postfix:2.1.3:*:*:*:*:*:*:* Versions 2.1.3 Vulnerable ·Wietse Venema
  • cpe:2.3:o:redhat:enterprise_linux:4.0:*:advanced_server:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:4.0:*:enterprise_server:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:4.0:*:workstation:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:suse:suse_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·SUSE
  • cpe:2.3:o:suse:suse_linux:8.0:*:i386:*:*:*:*:* Versions 8.0 Vulnerable ·SUSE
  • cpe:2.3:o:suse:suse_linux:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·SUSE
  • cpe:2.3:o:suse:suse_linux:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·SUSE
  • cpe:2.3:o:suse:suse_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·SUSE
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:suse:suse_linux:9.0:*:x86_64:*:*:*:*:*9.0VulnerableSUSE
cpe:2.3:o:suse:suse_linux:9.1:*:*:*:*:*:*:*9.1VulnerableSUSE
cpe:2.3:o:suse:suse_linux:9.2:*:*:*:*:*:*:*9.2VulnerableSUSE
  • cpe:2.3:o:suse:suse_linux:9.0:*:x86_64:*:*:*:*:* Versions 9.0 Vulnerable ·SUSE
  • cpe:2.3:o:suse:suse_linux:9.1:*:*:*:*:*:*:* Versions 9.1 Vulnerable ·SUSE
  • cpe:2.3:o:suse:suse_linux:9.2:*:*:*:*:*:*:* Versions 9.2 Vulnerable ·SUSE

Remediation

Red Hat 1 advisory

  • RHSA-2005:152 Released 2005-03-16 · Red Hat rating Low
    postfix security update
    • Red Hat Enterprise Linux AS version 4 postfix-2:2.1.5-4.2.RHEL4, postfix-2:2.1.5-4.2.RHEL4.i386, postfix-2:2.1.5-4.2.RHEL4.ia64 +5
    • Red Hat Enterprise Linux Desktop version 4 postfix-2:2.1.5-4.2.RHEL4, postfix-2:2.1.5-4.2.RHEL4.i386, postfix-pflogsumm-2:2.1.5-4.2.RHEL4 +1
    • Red Hat Enterprise Linux ES version 4 postfix-2:2.1.5-4.2.RHEL4, postfix-2:2.1.5-4.2.RHEL4.i386, postfix-2:2.1.5-4.2.RHEL4.ia64 +3
    • Red Hat Enterprise Linux WS version 4 postfix-2:2.1.5-4.2.RHEL4, postfix-2:2.1.5-4.2.RHEL4.i386, postfix-2:2.1.5-4.2.RHEL4.ia64 +3

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AS version 4Fixed RHSA-2005:152
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2005:152
Red Hat Enterprise Linux ES version 4Fixed RHSA-2005:152
Red Hat Enterprise Linux WS version 4Fixed RHSA-2005:152

Timeline

  1. 2026-10-02 Threatist record created from CVE-2005-0337
  2. 2026-10-03 Alias added: GHSA-5rxq-6r3q-5xj6

References

Advisory 2

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences