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AlmaLinux 9.6 [TuxCare] Security Update: bzip2 / bzip2-devel / bzip2-libs / bzip2-static (ALMALINUX9.6:CLSA-2026:1793283021)

medium Nessus Plugin ID 373735

Synopsis

The AlmaLinux host is missing one or more security updates.

Description

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1793283021 advisory.

 - bzip2 contains an offbyone error in the bzip2recover utility. When processing a specially crafted file, the application performs an outofbounds write to a global buffer, resulting in memory corruption and a crash (denial of service). This issue was fixed in bzip2 patch 35d122a3df8b0cc4082a4d89fdc6ee99f375fe67 (CVE-2026-42250)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages based on the guidance in TuxCare advisory ALMALINUX9.6:CLSA-2026:1793283021.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1793283021

http://www.nessus.org/u?c5b6394d

Plugin Details

Severity: Medium

ID: 373735

File Name: tuxcare_alma_linux_9.6_CLSA-2026-1793283021.nasl

Version: 1.1

Type: Local

Published: 10/29/2026

Updated: 10/29/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2026-42250

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.9

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.1

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 10/29/2026

Vulnerability Publication Date: 5/28/2026

Reference Information

CVE: CVE-2026-42250

CLSA: 2026:1793283021