Rocky Linux 8 [CIQ] Security Update: libXfont2 / libXfont2-debuginfo / libXfont2-debugsource / etc Multiple Vulnerabilities (crlsa-2026_47103)

high Nessus Plugin ID 358722

Synopsis

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

Description

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_47103 advisory.

* libXfont2: BitmapScaleBitmaps Integer Overflow Heap Buffer Overflow (CVE-2026-56001)

* libXfont2: PCF Font Parsing Heap Buffer Overflow (CVE-2026-56002)

* libXfont2: computeProps Property Buffer Heap Buffer Overflow (CVE-2026-56003)

Tenable has extracted the preceding description block directly from the CIQ 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 based on the guidance in CIQ advisory crlsa-2026_47103.

See Also

https://access.redhat.com/errata/RHSA-2026:47103

https://bugzilla.redhat.com/show_bug.cgi?id=2496640

https://bugzilla.redhat.com/show_bug.cgi?id=2496641

https://bugzilla.redhat.com/show_bug.cgi?id=2496642

https://errata.build.resf.org/RLSA-2026:47103

http://www.nessus.org/u?57b7abce

http://www.nessus.org/u?d79e247f

Plugin Details

Severity: High

ID: 358722

File Name: ciq_rocky_linux_8_crlsa-2026_47103.nasl

Version: 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.1

Vendor

Vendor Severity: Unknown

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/OS/extended-third-party, Host/local_checks_enabled, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/29/2026

Vulnerability Publication Date: 7/8/2026

Reference Information

CVE: CVE-2026-56001, CVE-2026-56002, CVE-2026-56003