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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : GNU C Library vulnerabilities (USN-8005-1)

medium Nessus Plugin ID 297802

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Synopsis

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

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8005-1 advisory.

 Vitaly Simonovich discovered that the GNU C Library did not properly initialize the input when WRDE_REUSE is used. An attacker could possibly use this issue to cause applications to crash, leading to a denial of service. (CVE-2025-15281)

 Anastasia Belova discovered that the GNU C Library incorrectly handled the regcomp function when memory allocation failures occured. An attacker could possibly use this issue to cause applications to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2025-8058)

 Igor Morgenstern discovered that the GNU C Library incorrectly handled the memalign function when doing memory allocation. An attacker could possibly use this issue to cause applications to crash, leading to a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2026-0861)

 Igor Morgenstern discovered that the GNU C Library incorrectly handled certain DNS backend when queries for a zero-valued network. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. (CVE-2026-0915)

Tenable has extracted the preceding description block directly from the Ubuntu 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://ubuntu.com/security/notices/USN-8005-1

Plugin Details

Severity: Medium

ID: 297802

File Name: ubuntu_USN-8005-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/4/2026

Updated: 2/4/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-0915

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.6

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

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

CVSS Score Source: CVE-2026-0861

CVSS v4

Risk Factor: Medium

Base Score: 5.9

Threat Score: 4.3

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2025-8058

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libc-devtools, p-cpe:/a:canonical:ubuntu_linux:libc6-armel, p-cpe:/a:canonical:ubuntu_linux:libc6-lse, p-cpe:/a:canonical:ubuntu_linux:libc6-s390, p-cpe:/a:canonical:ubuntu_linux:glibc-source, p-cpe:/a:canonical:ubuntu_linux:nscd, p-cpe:/a:canonical:ubuntu_linux:libc6-prof, p-cpe:/a:canonical:ubuntu_linux:libc6-dev-armel, p-cpe:/a:canonical:ubuntu_linux:multiarch-support, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libc6-i386, p-cpe:/a:canonical:ubuntu_linux:locales, p-cpe:/a:canonical:ubuntu_linux:libc6-x32, p-cpe:/a:canonical:ubuntu_linux:libc-bin, p-cpe:/a:canonical:ubuntu_linux:locales-all, p-cpe:/a:canonical:ubuntu_linux:libc6-amd64, p-cpe:/a:canonical:ubuntu_linux:libc6, p-cpe:/a:canonical:ubuntu_linux:libc6-dev-i386, p-cpe:/a:canonical:ubuntu_linux:libc6-pic, p-cpe:/a:canonical:ubuntu_linux:libc6-dev, p-cpe:/a:canonical:ubuntu_linux:libc-dev-bin, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libc6-dev-amd64, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libc6-dev-x32, p-cpe:/a:canonical:ubuntu_linux:libc6-dev-s390

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/3/2026

Vulnerability Publication Date: 3/11/2025

Reference Information

CVE: CVE-2025-15281, CVE-2025-8058, CVE-2026-0861, CVE-2026-0915

IAVA: 2025-A-0549

USN: 8005-1