CVE-2020-12100

HIGH

Dovecot < 2.3.11.3 - Denial of Service via Deeply Nested MIME Parts

Title source: llm
STIX 2.1

Description

In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts.

References (12)

Core 12
Core References
Vendor Advisory x_refsource_misc
https://dovecot.org/security
Exploit, Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2020/08/12/1
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4745
Mailing List, 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/
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202009-02
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/01/04/3
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Jan/18

Scores

CVSS v3 7.5
EPSS 0.1961
EPSS Percentile 95.5%
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-674
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