SUSE SLED15 / SLES15 Security Update : openssl-3 (SUSE-SU-2026:1375-1)

critical Nessus Plugin ID 306876

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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-2026:1375-1 advisory.

Security issues fixed:

- CVE-2026-28387: Potential use-after-free in DANE client code (bsc#1260441).
- CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL (bsc#1260442).
- CVE-2026-28389: Possible NULL dereference when processing CMS KeyAgreeRecipientInfo (bsc#1260443).
- CVE-2026-31789: Heap buffer overflow in hexadecimal conversion (bsc#1260444).
- CVE-2026-31790: Incorrect failure handling in RSA KEM RSASVE encapsulation (bsc#1260445).
- CVE-2026-28390: NULL pointer dereference during processing of a crafted CMS EnvelopedData message with KeyTransportRecipientInfo (bsc#1261678).

Other updates and bugfixes:

- Enable MD2 in legacy provider (jsc#PED-15724).

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: Critical

ID: 306876

File Name: suse_SU-2026-1375-1.nasl

Version: 1.2

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 4/17/2026

Updated: 4/27/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-31789

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libopenssl-3-devel, p-cpe:/a:novell:suse_linux:libopenssl3, p-cpe:/a:novell:suse_linux:openssl-3, p-cpe:/a:novell:suse_linux:libopenssl-3-fips-provider, p-cpe:/a:novell:suse_linux:libopenssl-3-fips-provider-32bit, p-cpe:/a:novell:suse_linux:libopenssl3-32bit

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: 4/15/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-28387, CVE-2026-28388, CVE-2026-28389, CVE-2026-28390, CVE-2026-31789, CVE-2026-31790

SuSE: SUSE-SU-2026:1375-1

Detections

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