PT-2020-5171 · Dovecot+6 · Dovecot+6

Orange · Published 2020-08-12 · Updated 2025-01-30 · CVE-2020-12674

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Dovecot versions prior to 2.3.11.3

Description The issue is related to incorrect input validation in the Dovecot mail server. It can be exploited by a remote attacker who sends a specially formatted RPA request, leading to a crash in the authentication service.

Recommendations For versions prior to 2.3.11.3, update to version 2.3.11.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the RPA request functionality until a patch is applied.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2020-3376

ALT-PU-2020-3453

ALT-PU-2021-1205

BDU:2020-05782

CESA-2020_3617

CESA-2020_3713

CVE-2020-12674

DLA-2328-1

DSA-4745-1

MGASA-2020-0330

OPENSUSE-SU-2020:1241-1

OPENSUSE-SU-2020:1262-1

OPENSUSE-SU-2020_1241-1

OPENSUSE-SU-2020_1262-1

OPENSUSE-SU-2024:10726-1

OPENSUSE-SU-2025:14715-1

RHSA-2020:3617

RHSA-2020:3713

RHSA-2020:3735

RHSA-2020:3736

RHSA-2020_3617

RHSA-2020_3713

SUSE-SU-2020:2266-1

SUSE-SU-2020:2267-1

SUSE-SU-2020:2274-1

SUSE-SU-2021:0028-1

USN-4456-1

USN-4456-2

Affected Products

Alt Linux

Centos

Dovecot

Linuxmint

Red Hat

Suse

Ubuntu

References · 86

• 🔥 https://openwall.com/lists/oss-security/2020/08/12/3 · Exploit
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.html · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2274-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-05782 · Security Note
• https://advisories.mageia.org/MGASA-2020-0330.html · Security Note
• https://dovecot.org/security · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4456-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2267-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-12674 · Vendor Advisory
• https://debian.org/security/2020/dsa-4745 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-3713.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-12673 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-12674 · Security Note