Debian dla-4871 : cyrus-sasl2-doc - security update

high Nessus Plugin ID 374415

Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 12 host has packages installed that are affected by a vulnerability as referenced in the dla-4871 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4871-1 [email protected] https://www.debian.org/lts/security/ Thorsten Alteholz October 30, 2026 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : cyrus-sasl2 Version : 2.1.28+dfsg-10+deb12u1 CVE ID : CVE-2026-107161

An issue has been found in cyrus-sasl2, a SASL (Simple Authentication and Security Layer) implementation for the Cyrus mail system.

The issue is related to a heap-based buffer overflow due to not recomputing a buffer size in the DIGEST-MD5 plugin.

For Debian 12 bookworm, this problem has been fixed in version 2.1.28+dfsg-10+deb12u1.

We recommend that you upgrade your cyrus-sasl2 packages.

For the detailed security status of cyrus-sasl2 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/cyrus-sasl2

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the cyrus-sasl2-doc packages.

Plugin Details

Severity: High

ID: 374415

File Name: debian_DLA-4871.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 10/31/2026

Updated: 10/31/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.51

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-107161

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:cyrus-sasl2-doc, p-cpe:/a:debian:debian_linux:libsasl2-2, p-cpe:/a:debian:debian_linux:libsasl2-dev, p-cpe:/a:debian:debian_linux:libsasl2-modules-db, p-cpe:/a:debian:debian_linux:libsasl2-modules-gssapi-heimdal, p-cpe:/a:debian:debian_linux:libsasl2-modules-gssapi-mit, p-cpe:/a:debian:debian_linux:libsasl2-modules-ldap, p-cpe:/a:debian:debian_linux:libsasl2-modules-otp, p-cpe:/a:debian:debian_linux:libsasl2-modules-sql, p-cpe:/a:debian:debian_linux:libsasl2-modules, p-cpe:/a:debian:debian_linux:sasl2-bin

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/30/2026

Vulnerability Publication Date: 10/7/2026

Reference Information

CVE: CVE-2026-107161

Detections

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