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SUSE: 2022:2423-1 Important Kernel Security Update for Retbleed

suse
Calendar Grey July 18, 2022
Scroller Suse
Critical SUSE patch resolves several security concerns in the Linux Kernel, addressing both retbleed and memory-related flaws.
An update that solves 9 vulnerabilities and has 9 fixes is now available

Summary

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657). - CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487). - CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619). - CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692) - CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).

Topics%20covered

Topics Covered

security advisory kernel update important fix SUSE memory exploit retbleed

References

#1194013 #1195775 #1196901 #1197362 #1199487

#1199489 #1199657 #1200263 #1200442 #1200571

#1200599 #1200604 #1200605 #1200608 #1200619

#1200692 #1201050 #1201080

Cross- CVE-2021-26341 CVE-2021-4157 CVE-2022-1679

CVE-2022-20132 CVE-2022-20141 CVE-2022-20154

CVE-2022-29900 CVE-2022-29901 CVE-2022-33981

CVSS scores:

CVE-2021-26341 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2021-26341 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2021-4157 (NVD) : 8 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-4157 (SUSE): 3.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

CVE-2022-1679 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1679 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2022:2423-1
Rating: important

Topics%20covered

Topics Covered

security advisory kernel update important fix SUSE memory exploit retbleed

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