RockyLinux 9 : tigervnc (RLSA-2025:2500)

high Nessus Plugin ID 235503

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:2500 advisory.

* X.Org: Xwayland: Use-after-free of the root cursor (CVE-2025-26594)

* xorg: xwayland: Use-after-free in SyncInitTrigger() (CVE-2025-26601)

* xorg: xwayland: Use-after-free in PlayReleasedEvents() (CVE-2025-26600)

* xorg: xwayland: Use of uninitialized pointer in compRedirectWindow() (CVE-2025-26599)

* xorg: xwayland: Out-of-bounds write in CreatePointerBarrierClient() (CVE-2025-26598)

* xorg: xwayland: Buffer overflow in XkbChangeTypesOfKey() (CVE-2025-26597)

* xorg: xwayland: Heap overflow in XkbWriteKeySyms() (CVE-2025-26596)

* Xorg: xwayland: Buffer overflow in XkbVModMaskText() (CVE-2025-26595)

Tenable has extracted the preceding description block directly from the RockyLinux 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://errata.rockylinux.org/RLSA-2025:2500

https://bugzilla.redhat.com/show_bug.cgi?id=2345248

https://bugzilla.redhat.com/show_bug.cgi?id=2345251

https://bugzilla.redhat.com/show_bug.cgi?id=2345252

https://bugzilla.redhat.com/show_bug.cgi?id=2345253

https://bugzilla.redhat.com/show_bug.cgi?id=2345254

https://bugzilla.redhat.com/show_bug.cgi?id=2345255

https://bugzilla.redhat.com/show_bug.cgi?id=2345256

https://bugzilla.redhat.com/show_bug.cgi?id=2345257

Plugin Details

Severity: High

ID: 235503

File Name: rocky_linux_RLSA-2025-2500.nasl

Version: 1.1

Type: local

Published: 5/7/2025

Updated: 5/7/2025

Supported Sensors: Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-26601

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/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

CPE: p-cpe:/a:rocky:linux:tigervnc-server-module-debuginfo, p-cpe:/a:rocky:linux:tigervnc-server, p-cpe:/a:rocky:linux:tigervnc-server-minimal-debuginfo, p-cpe:/a:rocky:linux:tigervnc-server-module, cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:tigervnc-icons, p-cpe:/a:rocky:linux:tigervnc, p-cpe:/a:rocky:linux:tigervnc-debuginfo, p-cpe:/a:rocky:linux:tigervnc-server-debuginfo, p-cpe:/a:rocky:linux:tigervnc-license, p-cpe:/a:rocky:linux:tigervnc-debugsource, p-cpe:/a:rocky:linux:tigervnc-selinux, p-cpe:/a:rocky:linux:tigervnc-server-minimal

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/7/2025

Vulnerability Publication Date: 2/18/2025

Reference Information

CVE: CVE-2025-26594, CVE-2025-26595, CVE-2025-26596, CVE-2025-26597, CVE-2025-26598, CVE-2025-26599, CVE-2025-26600, CVE-2025-26601