Input validation error in Dovecot - CVE-2011-1929
Published: May 25, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU45025
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2011-1929
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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 ' ' 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.
Affected software
Dovecot
Ubuntu
dovecot-common (Ubuntu package)
Ubuntu
dovecot-common (Ubuntu package)
How to mitigate CVE-2011-1929
Install update from vendor's website.
dovecot-common (Ubuntu package) - addressed in versions 1:1.2.9-1ubuntu6.4, 1:1.2.12-1ubuntu8.2, 1:1.2.15-3ubuntu2.1
External References
- http://dovecot.org/pipermail/dovecot/2011-May/059085.html
- http://dovecot.org/pipermail/dovecot/2011-May/059086.html
- http://hg.dovecot.org/dovecot-1.1/rev/3698dfe0f21c
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061384.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060815.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060825.html
- http://openwall.com/lists/oss-security/2011/05/18/4
- http://openwall.com/lists/oss-security/2011/05/19/3
- http://openwall.com/lists/oss-security/2011/05/19/6
- http://osvdb.org/72495
- http://secunia.com/advisories/44683
- http://secunia.com/advisories/44712
- http://secunia.com/advisories/44756
- http://secunia.com/advisories/44771
- http://secunia.com/advisories/44827
- http://www.debian.org/security/2011/dsa-2252
- http://www.dovecot.org/doc/NEWS-1.2
- http://www.dovecot.org/doc/NEWS-2.0
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:101
- http://www.redhat.com/support/errata/RHSA-2011-1187.html
- http://www.securityfocus.com/bid/47930
- http://www.ubuntu.com/usn/USN-1143-1
- https://bugzilla.redhat.com/show_bug.cgi?id=706286
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67589
- https://hermes.opensuse.org/messages/8581790