AlmaLinux 8 : kernel-rt (ALSA-2026:64770)

critical Nessus Plugin ID 343824

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-2026:64770 advisory.

* kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)
* kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002)
* kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007)
* kernel: rhashtable: clear stale iter->p on table restart (CVE-2026-64563)
* kernel: smb: client: validate DFS referral PathConsumed (CVE-2026-68343)
* kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129)
* kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)

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://access.redhat.com/errata/RHSA-2026:64770

https://errata.almalinux.org/8/ALSA-2026-64770.html

Plugin Details

Severity: Critical

ID: 343824

File Name: alma_linux_ALSA-2026-64770.nasl

Version: 1.1

Type: Local

Published: 9/8/2026

Updated: 9/8/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.14

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-74480

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:alma:linux:8, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::highavailability, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::sap, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:kernel-rt-core, p-cpe:/a:alma:linux:kernel-rt-debug-core, p-cpe:/a:alma:linux:kernel-rt-debug-devel, p-cpe:/a:alma:linux:kernel-rt-debug-modules-extra, p-cpe:/a:alma:linux:kernel-rt-debug-modules, p-cpe:/a:alma:linux:kernel-rt-debug, p-cpe:/a:alma:linux:kernel-rt-devel, p-cpe:/a:alma:linux:kernel-rt-modules-extra, p-cpe:/a:alma:linux:kernel-rt-modules, p-cpe:/a:alma:linux:kernel-rt

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2026

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-43493, CVE-2026-53002, CVE-2026-64007, CVE-2026-64563, CVE-2026-68343, CVE-2026-72129, CVE-2026-74480

CWE: 125, 770, 787, 805, 825

RHSA: 2026:64770