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SUSE: 2022:1641-1 Important Kernel Patch For Privilege Escalation

suse
Calendar Grey May 11, 2022
Dist Suse Esm H88
Addresses three critical vulnerabilities in the SUSE Linux Kernel for Enterprise Server 12 SP3, boosting overall system security.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 4.4.180-94_161 fixes several issues. The following security issues were fixed: - CVE-2022-1011: A use-after-free flaw was found in the FUSE filesystem in the way a user triggers write(). This flaw allowed a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. (bsc#1197344) - CVE-2021-39713: Fixed a race condition in the network scheduling subsystem which could lead to a use-after-free. (bsc#1197211) - CVE-2021-28688: The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch important system update SUSE access issues

References

#1182294 #1197211 #1197344

Cross- CVE-2021-28688 CVE-2021-39713 CVE-2022-1011

CVSS scores:

CVE-2021-28688 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVE-2021-28688 (SUSE): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVE-2021-39713 (NVD) : 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-39713 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1011 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1011 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise Server 12-SP3-LTSS

SUSE Linux Enterprise Server for SAP 12-SP3

https://www.suse.com/security/cve/CVE-2021-28688.html

https://www.suse.com/security/cve/CVE-2021-39713.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:1641-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch important system update SUSE access issues

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