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TI-2011-01701 Aliases CVE-2011-1929GHSA-8hm3-4p5h-mv6g

lib-mail/message-header-parser.c in Dovecot 1.2.x before 1.2.17 and 2.0.x before 2.0.13…

Priority LOW 29CWE-20Published · 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
None · None · Partial
Fix status
Fixed

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

Summary

lib-mail/message-header-parser.c in Dovecot 1.2.x before 1.2.17 and 2.0.x before 2.0.13 does not properly handle '\0' characters in header names, which allows remote attackers to cause a denial of service (daemon crash or mailbox corruption) via a crafted e-mail message.

Why it matters now

EPSS 0.0325 88th 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 · 31

CPEVersionsRoleVendor
cpe:2.3:a:dovecot:dovecot:1.2.0:*:*:*:*:*:*:*1.2.0VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.1:*:*:*:*:*:*:*1.2.1VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.2:*:*:*:*:*:*:*1.2.2VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.3:*:*:*:*:*:*:*1.2.3VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.4:*:*:*:*:*:*:*1.2.4VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.5:*:*:*:*:*:*:*1.2.5VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.6:*:*:*:*:*:*:*1.2.6VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.7:*:*:*:*:*:*:*1.2.7VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.8:*:*:*:*:*:*:*1.2.8VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.9:*:*:*:*:*:*:*1.2.9VulnerableThe Dovecot Project
Show 21 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:dovecot:dovecot:1.2.10:*:*:*:*:*:*:*1.2.10VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.11:*:*:*:*:*:*:*1.2.11VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.12:*:*:*:*:*:*:*1.2.12VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.13:*:*:*:*:*:*:*1.2.13VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.14:*:*:*:*:*:*:*1.2.14VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.15:*:*:*:*:*:*:*1.2.15VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:1.2.16:*:*:*:*:*:*:*1.2.16VulnerableThe Dovecot Project
cpe:2.3:a:dovecot:dovecot:2.0:beta1:*:*:*:*:*:*2.0 beta1VulnerableThe Dovecot Project
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
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

Remediation

Red Hat 1 advisory

  • RHSA-2011:1187 Released 2011-08-18 · Red Hat rating Moderate
    dovecot security update
    • RHEL Desktop Workstation (v. 5 client) dovecot-1.0.7-7.el5_7.1, dovecot-1.0.7-7.el5_7.1.i386
    • Red Hat Enterprise Linux (v. 5 server) dovecot-1.0.7-7.el5_7.1, dovecot-1.0.7-7.el5_7.1.i386, dovecot-1.0.7-7.el5_7.1.ia64 +1
    • Red Hat Enterprise Linux AS version 4 dovecot-0.99.11-10.EL4, dovecot-0.99.11-10.EL4.i386, dovecot-0.99.11-10.EL4.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 dovecot-0.99.11-10.EL4, dovecot-0.99.11-10.EL4.i386
    • Red Hat Enterprise Linux ES version 4 dovecot-0.99.11-10.EL4, dovecot-0.99.11-10.EL4.i386, dovecot-0.99.11-10.EL4.ia64
    • Red Hat Enterprise Linux Server (v. 6) dovecot-1:2.0.9-2.el6_1.1, dovecot-1:2.0.9-2.el6_1.1.ppc, dovecot-mysql-1:2.0.9-2.el6_1.1 +2
    • Red Hat Enterprise Linux Server Optional (v. 6) dovecot-1:2.0.9-2.el6_1.1, dovecot-devel-1:2.0.9-2.el6_1.1
    • Red Hat Enterprise Linux WS version 4 dovecot-0.99.11-10.EL4, dovecot-0.99.11-10.EL4.i386, dovecot-0.99.11-10.EL4.ia64

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
RHEL Desktop Workstation (v. 5 client)Fixed RHSA-2011:1187
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2011:1187
Red Hat Enterprise Linux AS version 4Fixed RHSA-2011:1187
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2011:1187
Red Hat Enterprise Linux ES version 4Fixed RHSA-2011:1187
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2011:1187
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2011:1187
Red Hat Enterprise Linux WS version 4Fixed RHSA-2011:1187

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-1929
  2. 2026-10-03 Alias added: GHSA-8hm3-4p5h-mv6g

References

Patch 7

Advisory 8

Other 3

  • 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