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RHEL 10 : xz (RHSA-2025:7524)

high Nessus Plugin ID 237825

Synopsis

The remote Red Hat host is missing a security update for xz.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:7524 advisory.

 XZ Utils is an integrated collection of user-space file compression utilities based on the Lempel-Ziv- Markov chain algorithm (LZMA), which performs lossless data compression. The algorithm provides a high compression ratio while keeping the decompression time short.

 Security Fix(es):

 * xz: XZ has a heap-use-after-free bug in threaded .xz decoder (CVE-2025-31115)

 For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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 RHEL xz package based on the guidance in RHSA-2025:7524.

See Also

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2357249

http://www.nessus.org/u?9d64aa36

https://access.redhat.com/errata/RHSA-2025:7524

Plugin Details

Severity: High

ID: 237825

File Name: redhat-RHSA-2025-7524.nasl

Version: 1.1

Type: local

Agent: unix

Published: 6/5/2025

Updated: 6/5/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2025-31115

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:xz-lzma-compat, p-cpe:/a:redhat:enterprise_linux:xz-libs, p-cpe:/a:redhat:enterprise_linux:xz, cpe:/o:redhat:enterprise_linux:10.0, p-cpe:/a:redhat:enterprise_linux:xz-devel

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 5/13/2025

Vulnerability Publication Date: 4/3/2025

Reference Information

CVE: CVE-2025-31115

CWE: 826

RHSA: 2025:7524