SUSE: 2022:2407-1 important: the Linux Kernel
Summary
The SUSE Linux Enterprise 15 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). - CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013). - CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599). - CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251). - CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762). - CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050). - CVE-2020-26541: Enforce the secure boot forbidden signature database (aka dbx) protection mechanism. (bsc#1177282) The following non-security bugs were fixed: - exec: Force single empty string when argv is empty (bsc#1200571).
References
#1177282 #1194013 #1196901 #1199487 #1199657
#1200571 #1200599 #1200604 #1200605 #1200608
#1200619 #1200692 #1200762 #1201050 #1201080
#1201251
Cross- CVE-2020-26541 CVE-2021-26341 CVE-2021-4157
CVE-2022-1679 CVE-2022-20132 CVE-2022-20141
CVE-2022-20154 CVE-2022-2318 CVE-2022-26365
CVE-2022-29900 CVE-2022-29901 CVE-2022-33740
CVE-2022-33741 CVE-2022-33742 CVE-2022-33981
CVSS scores:
CVE-2020-26541 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
CVE-2020-26541 (SUSE): 6 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
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
CVE-2022-20132 (NVD) : 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE-2022-20132 (SUSE): 4.9 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
CVE-2022-20141 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-20141 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-20154 (NVD) : 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2022-20154 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-2318 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2022-2318 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2022-26365 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVE-2022-29900 (SUSE): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2022-29901 (SUSE): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2022-33740 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVE-2022-33741 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVE-2022-33742 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVE-2022-33981 (NVD) : 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVE-2022-33981 (SUSE): 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
SUSE Linux Enterprise High Availability 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing 15-ESPOS
SUSE Linux Enterprise High Performance Computing 15-LTSS
SUSE Linux Enterprise Module for Live Patching 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server 15-LTSS
SUSE Linux Enterprise Server for SAP 15
SUSE Linux Enterprise Server for SAP Applications 15
https://www.suse.com/security/cve/CVE-2020-26541.html
https://www.suse.com/security/cve/CVE-2021-26341.html
https://www.suse.com/security/cve/CVE-2021-4157.html
https://www.suse.com/security/cve/CVE-2022-1679.html
https://www.suse.com/security/cve/CVE-2022-20132.html
https://www.suse.com/security/cve/CVE-2022-20141.html
https://www.suse.com/security/cve/CVE-2022-20154.html
https://www.suse.com/security/cve/CVE-2022-2318.html
https://www.suse.com/security/cve/CVE-2022-26365.html
https://www.suse.com/security/cve/CVE-2022-29900.html
https://www.suse.com/security/cve/CVE-2022-29901.html
https://www.suse.com/security/cve/CVE-2022-33740.html
https://www.suse.com/security/cve/CVE-2022-33741.html
https://www.suse.com/security/cve/CVE-2022-33742.html
https://www.suse.com/security/cve/CVE-2022-33981.html
https://bugzilla.suse.com/1177282
https://bugzilla.suse.com/1194013
https://bugzilla.suse.com/1196901
https://bugzilla.suse.com/1199487
https://bugzilla.suse.com/1199657
https://bugzilla.suse.com/1200571
https://bugzilla.suse.com/1200599
https://bugzilla.suse.com/1200604
https://bugzilla.suse.com/1200605
https://bugzilla.suse.com/1200608
https://bugzilla.suse.com/1200619
https://bugzilla.suse.com/1200692
https://bugzilla.suse.com/1200762
https://bugzilla.suse.com/1201050
https://bugzilla.suse.com/1201080
https://bugzilla.suse.com/1201251