CVE-2020-12674

HIGH

Dovecot <2.3.11.3 - Use After Free

Title source: llm
STIX 2.1

Description

In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled.

References (12)

Core 12
Core References
Vendor Advisory x_refsource_misc
https://dovecot.org/security
Exploit, Mailing List, Third Party Advisory x_refsource_confirm
https://www.openwall.com/lists/oss-security/2020/08/12/3
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4745
Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4456-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4456-2/
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202009-02

Scores

CVSS v3 7.5
EPSS 0.2580
EPSS Percentile 96.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-125
Status published
Products (10)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
debian/debian_linux 9.0
debian/debian_linux 10.0
dovecot/dovecot < 2.3.11.3
fedoraproject/fedora 31
fedoraproject/fedora 32
fedoraproject/fedora 33
Published Aug 12, 2020
Tracked Since Feb 18, 2026