Detections
Analytics

Rocky Linux 9.6 [TuxCare] Security Update: osbuild-composer / osbuild-composer-core / osbuild-composer-tests / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1793216388)

high Nessus Plugin ID 373437

Synopsis

The Rocky Linux host is missing one or more security updates.

Description

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1793216388 advisory.

 - When parsing a Range header containing a large number of small ranges, FileServer(FS), ServeContent, and ServeFile(FS) can consume an excessive amount of CPU. (CVE-2026-78667)

 - A malicious HTTP/2 peer can cause excessive CPU consumption in the client or server by opening a large number of streams and then sending many small SETTINGS frames containing SETTINGS_INITIAL_WINDOW_SIZE values. (CVE-2026-78669)

 - Multiple ECH outer extension references are not permitted under RFC 9849; previously, a client could send a well-crafted packet that could trigger memory exhaustion in the server process by specifying multiple references. We now reject these as malformed and curb the memory amplification vector as a result.
 (CVE-2026-97031)

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 based on the guidance in TuxCare advisory ALMALINUX9.6:CLSA-2026:1793216388.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1793216388

http://www.nessus.org/u?a438ab7d

Plugin Details

Severity: High

ID: 373437

File Name: tuxcare_rocky_linux_9.6_CLSA-2026-1793216388.nasl

Version: 1.1

Type: Local

Published: 10/28/2026

Updated: 10/28/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 95.76

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-97031

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

Vulnerability Information

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/28/2026

Vulnerability Publication Date: 10/8/2026

Reference Information

CVE: CVE-2026-78667, CVE-2026-78669, CVE-2026-97031

CLSA: 2026:1793216388