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SUSE: 2021:4122-2 Critical: Xorg-X11-Server Memory Vulnerability

suse
Calendar Grey December 20, 2021
Dist Suse Esm H88
SUSE Security Update for xorg-x11-server resolves critical issues impacting various products, with update and patch details.
An update that fixes three vulnerabilities is now available

Summary

This update for xorg-x11-server fixes the following issues: - 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) Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory software update important memory issue patches xorg-x11-server SUSE Linux Enterprise

References

#1190487 #1190488 #1190489

Cross- CVE-2021-4009 CVE-2021-4010 CVE-2021-4011

CVSS scores:

CVE-2021-4009 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-4010 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-4011 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise Server for SAP 15-SP1

SUSE Linux Enterprise Server 15-SP1-LTSS

SUSE Linux Enterprise Server 15-SP1-BCL

SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS

SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS

SUSE Enterprise Storage 6

SUSE CaaS Platform 4.0

https://www.suse.com/security/cve/CVE-2021-4009.html

https://www.suse.com/security/cve/CVE-2021-4010.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:4122-1
Rating: important

Topics%20covered

Topics Covered

security advisory software update important memory issue patches xorg-x11-server SUSE Linux Enterprise

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