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SUSE SLES12 Security Update : dovecot22 (SUSE-SU-2026:1641-1)

medium Nessus Plugin ID 311743

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1641-1 advisory.

 - CVE-2025-59031: decode2text.sh OOXML extraction may follow symlinks and read unintended files during indexing (bsc#1260895).
 - CVE-2025-59032: pigeonhole: ManageSieve panic occurs with sieve-connect as a client (bsc#1260902).
 - CVE-2026-27855: OTP driver vulnerable to replay attack (bsc#1260900).
 - CVE-2026-27856: Doveadm credentials were not checked using timing-safe checking function (bsc#1260899).
 - CVE-2026-27857: sending excessive parenthesis causes imap-login to use excessive memory (bsc#1260898).
 - CVE-2026-27858: pigeonhole: managesieve-login can allocate large amount of memory during authentication (bsc#1260901).
 - CVE-2026-27859: excessive RFC 2231 MIME parameters in email would can excessive CPU usage (bsc#1260897).

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

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

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1260895

https://bugzilla.suse.com/1260897

https://bugzilla.suse.com/1260898

https://bugzilla.suse.com/1260899

https://bugzilla.suse.com/1260900

https://bugzilla.suse.com/1260901

https://bugzilla.suse.com/1260902

https://lists.suse.com/pipermail/sle-updates/2026-April/046095.html

https://www.suse.com/security/cve/CVE-2025-59031

https://www.suse.com/security/cve/CVE-2025-59032

https://www.suse.com/security/cve/CVE-2026-27855

https://www.suse.com/security/cve/CVE-2026-27856

https://www.suse.com/security/cve/CVE-2026-27857

https://www.suse.com/security/cve/CVE-2026-27858

https://www.suse.com/security/cve/CVE-2026-27859

Plugin Details

Severity: Medium

ID: 311743

File Name: suse_SU-2026-1641-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 5/2/2026

Updated: 5/2/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2026-27856

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

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

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: 4/28/2026

Vulnerability Publication Date: 3/27/2026

Reference Information

CVE: CVE-2025-59031, CVE-2025-59032, CVE-2026-27855, CVE-2026-27856, CVE-2026-27857, CVE-2026-27858, CVE-2026-27859

SuSE: SUSE-SU-2026:1641-1