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SUSE SLES15: glibc / glibc-32bit / glibc-devel / glibc-devel-32bit / etc (SUSE-SU-2026:4591-1)

critical Nessus Plugin ID 369268

Synopsis

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

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4591-1 advisory.

 - CVE-2026-6368: wordexp WRDE_APPEND rollback restores stale we_wordv, leading to invalid free in wordfree (bsc#1274726).
 - CVE-2026-6791: wordexp: unbounded alloca (strndupa) in parse_tilde (bsc#1274723).
 - CVE-2026-8674: reachable assert in `resolv/resolv_conf.c:update_from_conf` allows an attacker in a local network to trigger a process crash (bsc#1281297).
 - CVE-2026-18374: overflow in the fopen ccs extension (bsc#1277262).
 - CVE-2026-19542: Fix out-of-bounds array write in tdelete (bsc#1276946).
 - CVE-2026-77117: non-progress DoS in SHIFT_JISX0213 -> UCS-4 conversion state handling (bsc#1277921).
 - CVE-2026-80489: non-progress DoS in SHIFT_JISX0213 -> UCS-4 conversion state handling (bsc#1277922).
 - CVE-2026-86805: TOCTOU race condition in the dynamic loader allows local attackers to escalate privileges (bsc#1282509).
 - CVE-2026-89092: nscd stack overflow leads to degraded DNS resolution (bsc#1282449).
 - CVE-2026-97399: one byte out-of-bounds read via function `strncasecmp` on Power8 can lead to a program crash (bsc#1283147).

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.

See Also

https://bugzilla.suse.com/1274723

https://bugzilla.suse.com/1274726

https://bugzilla.suse.com/1276946

https://bugzilla.suse.com/1277262

https://bugzilla.suse.com/1277921

https://bugzilla.suse.com/1277922

https://bugzilla.suse.com/1278011

https://bugzilla.suse.com/1281297

https://bugzilla.suse.com/1282449

https://bugzilla.suse.com/1282509

https://bugzilla.suse.com/1283147

https://www.suse.com/security/cve/CVE-2026-18374

https://www.suse.com/security/cve/CVE-2026-19542

https://www.suse.com/security/cve/CVE-2026-6368

https://www.suse.com/security/cve/CVE-2026-6791

https://www.suse.com/security/cve/CVE-2026-77117

https://www.suse.com/security/cve/CVE-2026-80489

https://www.suse.com/security/cve/CVE-2026-8674

https://www.suse.com/security/cve/CVE-2026-86805

https://www.suse.com/security/cve/CVE-2026-89092

https://www.suse.com/security/cve/CVE-2026-97399

http://www.nessus.org/u?d0d3742d

Plugin Details

Severity: Critical

ID: 369268

File Name: suse_SU-2026-4591-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/21/2026

Updated: 10/21/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.76

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2026-86805

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2026-6791

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:glibc-32bit, p-cpe:/a:novell:suse_linux:glibc-devel-32bit, p-cpe:/a:novell:suse_linux:glibc-devel-static, p-cpe:/a:novell:suse_linux:glibc-devel, p-cpe:/a:novell:suse_linux:glibc-extra, p-cpe:/a:novell:suse_linux:glibc-i18ndata, p-cpe:/a:novell:suse_linux:glibc-info, p-cpe:/a:novell:suse_linux:glibc-lang, p-cpe:/a:novell:suse_linux:glibc-locale-base-32bit, p-cpe:/a:novell:suse_linux:glibc-locale-base, p-cpe:/a:novell:suse_linux:glibc-locale, p-cpe:/a:novell:suse_linux:glibc-profile, p-cpe:/a:novell:suse_linux:glibc-utils, p-cpe:/a:novell:suse_linux:glibc, p-cpe:/a:novell:suse_linux:nscd

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: 10/8/2026

Vulnerability Publication Date: 8/10/2026

Reference Information

CVE: CVE-2026-18374, CVE-2026-19542, CVE-2026-6368, CVE-2026-6791, CVE-2026-77117, CVE-2026-80489, CVE-2026-8674, CVE-2026-86805, CVE-2026-89092, CVE-2026-97399

IAVA: 2026-A-0897

SuSE: SUSE-SU-2026:4591-1