SUSE SLED15: krb5 / krb5-32bit / krb5-client / krb5-devel / krb5-plugin-kdb-ldap / etc (SUSE-SU-2026:2848-1)

high Nessus Plugin ID 326422

Synopsis

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

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2848-1 advisory.

This update for krb5, krb5-mini fixes the following issues

- CVE-2026-11850: integer underflow in berval2tl_data() leads to heap out-of-bounds read (bsc#1268131).
- CVE-2026-40355: Denial of Service via NULL pointer dereference in NegoEx mechanism (bsc#1263366).
- CVE-2026-40356: Denial of Service via integer underflow and out-of-bounds read (bsc#1263367).

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.

Plugin Details

Severity: High

ID: 326422

File Name: suse_SU-2026-2848-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 7/12/2026

Updated: 7/12/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 52.03

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-40356

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-pkinit, p-cpe:/a:novell:suse_linux:krb5-client, cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-otp, p-cpe:/a:novell:suse_linux:krb5-server, p-cpe:/a:novell:suse_linux:krb5-32bit, p-cpe:/a:novell:suse_linux:krb5-devel, p-cpe:/a:novell:suse_linux:krb5, p-cpe:/a:novell:suse_linux:krb5-plugin-kdb-ldap

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/10/2026

Vulnerability Publication Date: 4/28/2026

Reference Information

CVE: CVE-2026-11850, CVE-2026-40355, CVE-2026-40356

SuSE: SUSE-SU-2026:2848-1

Detections

Analytics