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AlmaLinux 9.6 [TuxCare] Security Update: spice-vdagent (ALMALINUX9.6:CLSA-2026:1786717202)

medium Nessus Plugin ID 360361

Synopsis

The AlmaLinux host is missing one or more security updates.

Description

The AlmaLinux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1786717202 advisory.

 - A flaw was found in spice-vdagent. A malicious or compromised SPICE host can trigger an integer overflow by sending a specially crafted message. This vulnerability can lead to a heap buffer overflow, causing the spice-vdagent daemon to crash and resulting in a Denial of Service (DoS) for the virtual machine. This issue requires the SPICE host to be untrusted or compromised for exploitation. (CVE-2026-57965)

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 affected spice-vdagent package based on the guidance in TuxCare advisory ALMALINUX9.6:CLSA-2026:1786717202.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1786717202

http://www.nessus.org/u?3e8f202a

Plugin Details

Severity: Medium

ID: 360361

File Name: tuxcare_alma_linux_9.6_CLSA-2026-1786717202.nasl

Version: 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.85

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2026-57965

CVSS v3

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.5

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/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/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 8/14/2026

Vulnerability Publication Date: 6/29/2026

Reference Information

CVE: CVE-2026-57965

CLSA: 2026:1786717202