Detections
Analytics

AlmaLinux 8 : kernel (ALSA-2026:19666)

high Nessus Plugin ID 316073

Synopsis

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

Description

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:19666 advisory.

 * kernel: Fragnesia is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-46300)
 * kernel: Read root-owned files as an unprivileged user (CVE-2026-46333)

Tenable has extracted the preceding description block directly from the AlmaLinux 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://errata.almalinux.org/8/ALSA-2026-19666.html

https://access.redhat.com/errata/RHSA-2026:19666

Plugin Details

Severity: High

ID: 316073

File Name: alma_linux_ALSA-2026-19666.nasl

Version: 1.2

Type: Local

Published: 5/21/2026

Updated: 5/25/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-46333

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:alma:linux:kernel-tools, p-cpe:/a:alma:linux:kernel-cross-headers, p-cpe:/a:alma:linux:kernel-debug-modules-extra, p-cpe:/a:alma:linux:kernel-tools-libs-devel, p-cpe:/a:alma:linux:kernel, cpe:/o:alma:linux:8::appstream, p-cpe:/a:alma:linux:kernel-debug, p-cpe:/a:alma:linux:kernel-headers, p-cpe:/a:alma:linux:kernel-core, p-cpe:/a:alma:linux:kernel-zfcpdump-core, p-cpe:/a:alma:linux:kernel-zfcpdump, p-cpe:/a:alma:linux:kernel-zfcpdump-modules-extra, p-cpe:/a:alma:linux:perf, p-cpe:/a:alma:linux:kernel-debug-core, p-cpe:/a:alma:linux:kernel-modules, p-cpe:/a:alma:linux:kernel-zfcpdump-modules, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8, p-cpe:/a:alma:linux:kernel-debug-modules, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:bpftool, p-cpe:/a:alma:linux:kernel-devel, p-cpe:/a:alma:linux:python3-perf, p-cpe:/a:alma:linux:kernel-debug-devel, p-cpe:/a:alma:linux:kernel-zfcpdump-devel, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::realtime, p-cpe:/a:alma:linux:kernel-modules-extra, cpe:/o:alma:linux:8::highavailability, p-cpe:/a:alma:linux:kernel-tools-libs, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::sap, p-cpe:/a:alma:linux:kernel-abi-stablelists

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/20/2026

Vulnerability Publication Date: 5/13/2026

Reference Information

CVE: CVE-2026-46300, CVE-2026-46333

CWE: 123, 269

RHSA: 2026:19666