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Alerts This Week
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SUSE: 2021:1891-1 Important: Linux Kernel Issues Resolved

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Calendar Grey June 8, 2021
Scroller Suse
This crucial security notice outlines corrections for severe flaws in the SUSE Linux Kernel. Ensure you remain informed!
An update that solves 12 vulnerabilities and has 15 fixes is now available

Summary

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484). - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111) - CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062) - CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)

Topics%20covered

Topics Covered

security advisory denial of service privilege escalation access control important SUSE Linux kernel

References

#1176081 #1180846 #1183947 #1184611 #1184675

#1185642 #1185677 #1185680 #1185724 #1185859

#1185860 #1185862 #1185863 #1185898 #1185899

#1185901 #1185938 #1185950 #1185987 #1186060

#1186061 #1186062 #1186111 #1186285 #1186390

#1186484 #1186498

Cross- CVE-2020-24586 CVE-2020-24587 CVE-2020-26139

CVE-2020-26141 CVE-2020-26145 CVE-2020-26147

CVE-2021-23133 CVE-2021-23134 CVE-2021-32399

CVE-2021-33034 CVE-2021-33200 CVE-2021-3491

CVSS scores:

CVE-2020-24586 (NVD) : 3.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVE-2020-24586 (SUSE): 4.7 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

CVE-2020-24587 (NVD) : 2.6 CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

CVE-2020-24587 (SUSE): 4.2 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2021:1891-1
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service privilege escalation access control important SUSE Linux kernel

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