PT-2020-12455 · Dovecot+7 · Dovecot+7

Philippe Antoine · Published 2020-05-18 · Updated 2025-01-30 · CVE-2020-10967

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Dovecot versions prior to 2.3.10.1

Description The issue allows remote unauthenticated attackers to crash the lmtp or submission process by sending mail with an empty localpart.

Recommendations For versions prior to 2.3.10.1, update to version 2.3.10.1 or later to resolve the issue.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALSA-2020:4763

ALT-PU-2020-1984

ALT-PU-2020-1989

CESA-2020_4763

CVE-2020-10967

DSA-4690-1

MGASA-2020-0222

OPENSUSE-SU-2020:0720-1

OPENSUSE-SU-2020_0720-1

OPENSUSE-SU-2024:10726-1

OPENSUSE-SU-2025:14715-1

RHSA-2020:4763

RHSA-2020_4763

SUSE-SU-2020:1379-1

SUSE-SU-2020:1380-1

USN-4361-1

Affected Products

Alt Linux

Almalinux

Centos

Dovecot

Linuxmint

Red Hat

Suse

Ubuntu

References · 71

• 🔥 http://seclists.org/fulldisclosure/2020/May/37 · Exploit
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-4763.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:1380-1 · Vendor Advisory
• https://dovecot.org/security · Vendor Advisory
• https://osv.dev/vulnerability/USN-4361-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4361-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-10967 · Security Note
• https://osv.dev/vulnerability/ALSA-2020:4763 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:0720-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-10957 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2020-10967 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0222.html · Security Note