SUSE: 2022:14905-1 important: the Linux Kernel
Summary
The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. Transient execution side-channel attacks attacking the Branch History Buffer (BHB), named "Branch Target Injection" and "Intra-Mode Branch History Injection" are now mitigated. The following security bugs were fixed: - CVE-2022-0001: Fixed Branch History Injection vulnerability (bsc#1191580). - CVE-2022-0002: Fixed Intra-Mode Branch Target Injection vulnerability (bsc#1191580). - CVE-2020-12770: Fixed sg_remove_request call in a certain failure cases (bsc#1171420). - CVE-2022-0617: Fixed a null pointer dereference in UDF file system functionality. A local user could crash the system by triggering udf_file_write_iter() via a malicious UDF image. (bsc#1196079) - CVE-2022-0492: Fixed a privilege escalation related to cgroups v1 release_agent feature, which allowed bypassing namespace isolation unexpectedly (bsc#1195543). - CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bsc#1193867). - CVE-2021-4155: Fixed a data leak flaw that allows a local attacker to leak data on the XFS filesystem (bsc#1194272). - CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599). - CVE-2019-0136: Fixed an insufficient access control which allow an unauthenticated user to execute a denial of service (bsc#1193157). - CVE-2021-3753: Fixed race out-of-bounds in virtual terminal handling (bsc#1190025). The following non-security bugs were fixed: - kprobes: Limit max data_size of the kretprobe instances (bsc#1193669). - md: check the return of mddev_find() (bsc#1195109).
References
#1171420 #1179599 #1190025 #1191580 #1193157
#1193669 #1193867 #1194272 #1195109 #1195543
#1195908 #1196079 #1196612
Cross- CVE-2019-0136 CVE-2020-12770 CVE-2020-27820
CVE-2021-3753 CVE-2021-4155 CVE-2021-45095
CVE-2022-0001 CVE-2022-0002 CVE-2022-0492
CVE-2022-0617
CVSS scores:
CVE-2019-0136 (NVD) : 7.4 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVE-2019-0136 (SUSE): 7.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVE-2020-12770 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2020-12770 (SUSE): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CVE-2020-27820 (SUSE): 3.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:L
CVE-2021-3753 (NVD) : 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2021-3753 (SUSE): 2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVE-2021-4155 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2021-45095 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2021-45095 (SUSE): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE-2022-0001 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVE-2022-0002 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVE-2022-0492 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-0617 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2022-0617 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:
SUSE Linux Enterprise Debuginfo 11-SP4
SUSE Linux Enterprise Server 11-EXTRA
SUSE Linux Enterprise Server 11-SP4-LTSS
https://www.suse.com/security/cve/CVE-2019-0136.html
https://www.suse.com/security/cve/CVE-2020-12770.html
https://www.suse.com/security/cve/CVE-2020-27820.html
https://www.suse.com/security/cve/CVE-2021-3753.html
https://www.suse.com/security/cve/CVE-2021-4155.html
https://www.suse.com/security/cve/CVE-2021-45095.html
https://www.suse.com/security/cve/CVE-2022-0001.html
https://www.suse.com/security/cve/CVE-2022-0002.html
https://www.suse.com/security/cve/CVE-2022-0492.html
https://www.suse.com/security/cve/CVE-2022-0617.html
https://bugzilla.suse.com/1171420
https://bugzilla.suse.com/1179599
https://bugzilla.suse.com/1190025
https://bugzilla.suse.com/1191580
https://bugzilla.suse.com/1193157
https://bugzilla.suse.com/1193669
https://bugzilla.suse.com/1193867
https://bugzilla.suse.com/1194272
https://bugzilla.suse.com/1195109
https://bugzilla.suse.com/1195543
https://bugzilla.suse.com/1195908
https://bugzilla.suse.com/1196079
https://bugzilla.suse.com/1196612