SUSE SLES12 Security Update : openssl-1_1 (SUSE-SU-2026:2403-1)

high Nessus Plugin ID 321643

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-2026:2403-1 advisory.

- CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7_verify() (bsc#1266357).
- CVE-2026-42766: Possible NULL Dereference in Password-Based CMS Decryption (bsc#1266349).
- CVE-2026-9076: Out-of-Bounds Read in CMS Password-Based Decryption (bsc#1266341).
- CVE-2026-7383: Possible Heap Buffer Overflow in ASN.1 Multibyte String Conversion (bsc#1266340).
- CVE-2026-34180: Heap Buffer Over-read in ASN.1 Content Parsing (bsc#1266342).

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: 321643

File Name: suse_SU-2026-2403-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 6/20/2026

Updated: 6/20/2026

Supported Sensors: Continuous Assessment, 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-2026-45447

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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:12, p-cpe:/a:novell:suse_linux:libopenssl-1_1-devel, p-cpe:/a:novell:suse_linux:libopenssl1_1-hmac, p-cpe:/a:novell:suse_linux:openssl-1_1, p-cpe:/a:novell:suse_linux:libopenssl-1_1-devel-32bit, p-cpe:/a:novell:suse_linux:libopenssl1_1-hmac-32bit, p-cpe:/a:novell:suse_linux:libopenssl1_1, p-cpe:/a:novell:suse_linux:libopenssl1_1-32bit

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: 6/16/2026

Vulnerability Publication Date: 6/9/2026

Reference Information

CVE: CVE-2026-34180, CVE-2026-42766, CVE-2026-45447, CVE-2026-7383, CVE-2026-9076

SuSE: SUSE-SU-2026:2403-1

Detections

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