CVE-2011-1929 json
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…
published 2011-05-24 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-1927
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.3%
- EPSS 3.3% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
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.
Patch / fix
- dovecot Debian 14, Debian 13, Debian 12 1:2.0.13-1
debian advisories DEBIAN-CVE-2011-1929
- dovecot RHEL 4 0.99.11-10.EL4
- dovecot RHEL 5 1.0.7-7.el5_7.1
- dovecot RHEL 6 1:2.0.9-2.el6_1.1
- dovecot-mysql RHEL 6 1:2.0.9-2.el6_1.1
- dovecot-pgsql RHEL 6 1:2.0.9-2.el6_1.1
- dovecot-pigeonhole RHEL 6 1:2.0.9-2.el6_1.1
red hat advisories RHSA-2011:1187
- hg.dovecot.org/dovecot-1.1/rev/3698dfe0f21c patch
- dovecot.org/pipermail/dovecot/2011-May/059086.html patch
- bugzilla.redhat.com/show_bug.cgi?id=706286 patch
- dovecot.org/pipermail/dovecot/2011-May/059085.html patch
- openwall.com/lists/oss-security/2011/05/19/6 patch
- openwall.com/lists/oss-security/2011/05/19/3 patch
- openwall.com/lists/oss-security/2011/05/18/4 patch
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2011-1929 updated cvss 5.0
dovecot: potential crash when parsing header names that contain NUL characters
-
Red Hat Enterprise Linux (v. 5 server) dovecot 1.0.7-7.el5_7.1 Red Hat Enterprise Linux AS version 4 dovecot 0.99.11-10.EL4 Red Hat Enterprise Linux Desktop version 4 dovecot 0.99.11-10.EL4 Red Hat Enterprise Linux ES version 4 dovecot 0.99.11-10.EL4 Red Hat Enterprise Linux Server (v. 6) dovecot 2.0.9-2.el6_1.1, dovecot-mysql 2.0.9-2.el6_1.1, dovecot-pgsql 2.0.9-2.el6_1.1, dovecot-pigeonhole 2.0.9-2.el6_1.1 Red Hat Enterprise Linux Server Optional (v. 6) dovecot 2.0.9-2.el6_1.1, dovecot-mysql 2.0.9-2.el6_1.1, dovecot-pgsql 2.0.9-2.el6_1.1, dovecot-pigeonhole 2.0.9-2.el6_1.1fixed: vendor fix RHSA-2011:1187
+2 more productsfewer
Red Hat Enterprise Linux WS version 4 dovecot 0.99.11-10.EL4 Red Hat RHEL Desktop Workstation (v. 5 client) dovecot 1.0.7-7.el5_7.1
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
3.25% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
hg.dovecot.org
/dovecot-1.1/rev/3698dfe0f21c
patch
-
dovecot.org
/pipermail/dovecot/2011-May/059086.html
mailing-list, patch
-
bugzilla.redhat.com
/show_bug.cgi?id=706286
patch
-
dovecot.org
/pipermail/dovecot/2011-May/059085.html
mailing-list, patch
-
openwall.com
/lists/oss-security/2011/05/19/6
mailing-list, patch
-
openwall.com
/lists/oss-security/2011/05/19/3
mailing-list, patch
-
openwall.com
/lists/oss-security/2011/05/18/4
mailing-list, patch
-
lists.fedoraproject.org
/pipermail/package-announce/2011-June/061384.html
vendor-advisory
-
debian.org
/security/2011/dsa-2252
vendor-advisory
-
mandriva.com
/security/advisories?name=MDVSA-2011:101
vendor-advisory
-
redhat.com
/support/errata/RHSA-2011-1187.html
vendor-advisory
-
lists.fedoraproject.org
/pipermail/package-announce/2011-May/060825.html
vendor-advisory
-
hermes.opensuse.org
/messages/8581790
vendor-advisory
-
lists.fedoraproject.org
/pipermail/package-announce/2011-May/060815.html
vendor-advisory
-
ubuntu.com
/usn/USN-1143-1
vendor-advisory
-
secunia.com
/advisories/44771
third-party-advisory
- dovecot.org /doc/NEWS-2.0
-
osvdb.org
/72495
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/67589
vdb-entry
-
securityfocus.com
/bid/47930
vdb-entry
-
secunia.com
/advisories/44756
third-party-advisory
-
secunia.com
/advisories/44827
third-party-advisory
-
secunia.com
/advisories/44683
third-party-advisory
-
secunia.com
/advisories/44712
third-party-advisory
- dovecot.org /doc/NEWS-1.2
Sources
- CVE List CVE-2011-1929
- NVD CVE-2011-1929
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.