SUSE SLES15 Security Update : xorg-x11-server (SUSE-SU-2021:4136-2)

high Nessus Plugin ID 158145

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Synopsis

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

Description

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:4136-2 advisory.

- CVE-2021-4009: The handler for the CreatePointerBarrier request of the XFixes extension does not properly validate the request length leading to out of bounds memory write. (bsc#1190487)
- CVE-2021-4010: The handler for the Suspend request of the Screen Saver extension does not properly validate the request length leading to out of bounds memory write. (bsc#1190488)
- CVE-2021-4011: The handlers for the RecordCreateContext and RecordRegisterClients requests of the Record extension do not properly validate the request length leading to out of bounds memory write. (bsc#1190489)

Tenable has extracted the preceding description block directly from the SUSE 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 xorg-x11-server, xorg-x11-server-extra and / or xorg-x11-server-sdk packages.

Plugin Details

Severity: High

ID: 158145

File Name: suse_SU-2021-4136-2.nasl

Version: 1.6

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 2/18/2022

Updated: 6/25/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-4011

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: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:xorg-x11-server, p-cpe:/a:novell:suse_linux:xorg-x11-server-extra, p-cpe:/a:novell:suse_linux:xorg-x11-server-sdk

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/17/2022

Vulnerability Publication Date: 12/17/2021

Reference Information

CVE: CVE-2021-4009, CVE-2021-4010, CVE-2021-4011

SuSE: SUSE-SU-2021:4136-2

Detections

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