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TI-2011-03785 Aliases CVE-2011-4318GHSA-w2rf-p589-jpp8

Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to…

Priority LOW 29CWE-20Published · Updated

Key facts

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

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

Summary

Dovecot 2.0.x before 2.0.16, when ssl or starttls is enabled and hostname is used to define the proxy destination, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate for a different hostname.

Why it matters now

EPSS 0.01321 71st 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 · 16

CPEVersionsRoleVendor
cpe:2.3:a:dovecot:dovecot:2.0.0:*:*:*:*:*:*:*2.0.0VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.1:*:*:*:*:*:*:*2.0.1VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.2:*:*:*:*:*:*:*2.0.2VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.3:*:*:*:*:*:*:*2.0.3VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.4:*:*:*:*:*:*:*2.0.4VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.5:*:*:*:*:*:*:*2.0.5VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.6:*:*:*:*:*:*:*2.0.6VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.7:*:*:*:*:*:*:*2.0.7VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.8:*:*:*:*:*:*:*2.0.8VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.9:*:*:*:*:*:*:*2.0.9VulnerableThe Dovecot Project
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:dovecot:dovecot:2.0.10:*:*:*:*:*:*:*2.0.10VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.11:*:*:*:*:*:*:*2.0.11VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.12:*:*:*:*:*:*:*2.0.12VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.13:*:*:*:*:*:*:*2.0.13VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.14:*:*:*:*:*:*:*2.0.14VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0.15:*:*:*:*:*:*:*2.0.15VulnerableThe Dovecot Project
  • cpe:2.3:a:dovecot:dovecot:2.0.10:*:*:*:*:*:*:* Versions 2.0.10 Vulnerable ·The Dovecot Project
  • cpe:2.3:a:dovecot:dovecot:2.0.11:*:*:*:*:*:*:* Versions 2.0.11 Vulnerable ·The Dovecot Project
  • cpe:2.3:a:dovecot:dovecot:2.0.12:*:*:*:*:*:*:* Versions 2.0.12 Vulnerable ·The Dovecot Project
  • cpe:2.3:a:dovecot:dovecot:2.0.13:*:*:*:*:*:*:* Versions 2.0.13 Vulnerable ·The Dovecot Project
  • cpe:2.3:a:dovecot:dovecot:2.0.14:*:*:*:*:*:*:* Versions 2.0.14 Vulnerable ·The Dovecot Project
  • cpe:2.3:a:dovecot:dovecot:2.0.15:*:*:*:*:*:*:* Versions 2.0.15 Vulnerable ·The Dovecot Project

Remediation

Red Hat 1 advisory

  • RHSA-2013:0520 Released 2013-02-20 · Red Hat rating Low
    dovecot security and bug fix update
    • Red Hat Enterprise Linux Server (v. 6) dovecot-1:2.0.9-5.el6, dovecot-1:2.0.9-5.el6.ppc, dovecot-mysql-1:2.0.9-5.el6 +2
    • Red Hat Enterprise Linux Server Optional (v. 6) dovecot-1:2.0.9-5.el6, dovecot-devel-1:2.0.9-5.el6
    • Red Hat Enterprise Linux Workstation (v. 6) dovecot-1:2.0.9-5.el6, dovecot-mysql-1:2.0.9-5.el6, dovecot-pgsql-1:2.0.9-5.el6 +1
    • Red Hat Enterprise Linux Workstation Optional (v. 6) dovecot-1:2.0.9-5.el6, dovecot-devel-1:2.0.9-5.el6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2013:0520
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2013:0520
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2013:0520
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2013:0520
Not affected: 2 products
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-4318
  2. 2026-10-03 Alias added: GHSA-w2rf-p589-jpp8

References

Advisory 1

Other 6

  • TI-2019-08591 In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2)… CVSS 3.0CRITICAL 9.8
  • TI-2020-05686 lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles… CVSS 3.1HIGH 7.5
  • TI-2016-07114 The auth component in Dovecot before 2.2.27, when auth-policy is configured, allows a… CVSS 3.0MEDIUM 5.9
  • TI-2017-10567 Out-of-bounds read in Dovecot CVSS 3.0HIGH 7.1
  • TI-2022-12706 An issue was discovered in the auth component in Dovecot 2.2 and 2.3 before 2.3.20. CVSS 3.1HIGH 8.8
  • TI-2020-08835 In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP… CVSS 3.1HIGH 7.5
See all 68 →

Sources

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