SUSE SLES12: dovecot22 / dovecot22-backend-mysql / dovecot22-backend-pgsql / etc (SUSE-SU-2026:4271-1)

medium Nessus Plugin ID 348726

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:4271-1 advisory.

This update for dovecot22 fixes the following issue:

- CVE-2026-40016: Sieve :contains/:matches O(NxM) substring match bypasses sieve_max_cpu_time limit (bsc#1265148).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1265148

https://www.suse.com/security/cve/CVE-2026-40016

http://www.nessus.org/u?3f77250a

Plugin Details

Severity: Medium

ID: 348726

File Name: suse_SU-2026-4271-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/22/2026

Updated: 9/22/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-40016

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:dovecot22-backend-mysql, p-cpe:/a:novell:suse_linux:dovecot22-backend-pgsql, p-cpe:/a:novell:suse_linux:dovecot22-backend-sqlite, p-cpe:/a:novell:suse_linux:dovecot22-devel, p-cpe:/a:novell:suse_linux:dovecot22

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/21/2026

Vulnerability Publication Date: 5/12/2026

Reference Information

CVE: CVE-2026-40016

SuSE: SUSE-SU-2026:4271-1