SUSE 15-SP2: SUSE-SU-2021:4136-2 Important: Xorg Out of Bounds Issue
suse
February 17, 2022
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".
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 Realtime Extension 15-SP2
https://www.suse.com/security/cve/CVE-2021-4009.html
https://www.suse.com/security/cve/CVE-2021-4010.html
https://www.suse.com/security/cve/CVE-2021-4011.html
https://bugzilla.suse.com/1190487
https://bugzilla.suse.com/1190488
https://bugzilla.suse.com/1190489
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Announcement ID: SUSE-SU-2021:4136-2
Rating: important
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