Detections
Analytics
Unity Linux 20.1070a Security Update: libXfont2 (UTSA-2026-141793)
high Nessus Plugin ID 369063
Synopsis
The Unity Linux host is missing one or more security updates.Description
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-141793 advisory.A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2 ComputeScaledProperties() before libXfont2 before 2.0.8 could be used by attackers using authenticated X clients to execute code within the X server.
Tenable has extracted the preceding description block directly from the Unity Linux security advisory.
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 libXfont2 package.See Also
https://access.redhat.com/security/cve/CVE-2026-56003
https://www.openwall.com/lists/oss-security/2026/07/08/1
Plugin Details
Severity: High
ID: 369063
File Name: unity_linux_UTSA-2026-141793.nasl
Version: 1.1
Type: Local
Published: 10/21/2026
Updated: 10/21/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.1
CVSS v2
Risk Factor: High
Base Score: 9
Temporal Score: 6.7
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2026-56003
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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/UOS-Server/release, Host/UOS-Server/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 10/20/2026
Vulnerability Publication Date: 7/8/2026
Reference Information
CVE: CVE-2026-56003