openSUSE 16 Security Update : snpguest (openSUSE-SU-2026:21579-1)

critical Nessus Plugin ID 335939

Synopsis

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

Description

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21579-1 advisory.

- CVE-2026-41677: openssl: out-of-bounds read in PEM password callback when returning an oversized length (bsc#1270541).
- CVE-2026-41678: openssl: OOB write due to incorrect bounds assertion in `aes::unwrap_key()` (bsc#1270642).
- CVE-2026-41681: openssl: stack corruption due to `MdCtxRef::digest_final()` writing past caller buffer with no length check (bsc#1270720).
- CVE-2026-41898: openssl: information leak to network peers due to unchecked callback-returned length in PSK and cookie generate trampolines (bsc#1270799).
- CVE-2026-42327: openssl: undefined behavior in `X509Ref::ocsp_responders` when processing certificates with non-UTF-8 OCSP URLs (bsc#1270527).
- CVE-2026-44662: openssl: heap buffer overflow when encrypting with AES key-wrap-with-padding (bsc#1270873).
- CVE-2026-45784: openssl: out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers (bsc#1270947).

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 snpguest package.

Plugin Details

Severity: Critical

ID: 335939

File Name: openSUSE-2026-21579-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 8/17/2026

Updated: 8/17/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.92

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-41677

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-41681

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:snpguest

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: 8/14/2026

Vulnerability Publication Date: 4/22/2026

Reference Information

CVE: CVE-2026-41677, CVE-2026-41678, CVE-2026-41681, CVE-2026-41898, CVE-2026-42327, CVE-2026-44662, CVE-2026-45784

Detections

Analytics