SUSE: 2022:0756-1 important: the Linux Kernel
Summary
The SUSE Linux Enterprise 12 SP2 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-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-2022-24448: Fixed an issue in fs/nfs/dir.c. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should have occured, but the server instead returned uninitialized data in the file descriptor (bsc#1195612). - CVE-2021-0920: Fixed a local privilege escalation due to a use-after-free bug in unix_gc (bsc#1193731). - CVE-2016-10905: Fixed a use-after-free is gfs2_clear_rgrpd() and read_rindex_entry() (bsc#1146312). The following non-security bug was fixed: - net: sched: sch_teql: fix null-pointer dereference (bsc#1190717).
References
#1146312 #1190717 #1191580 #1193731 #1194463
#1195543 #1195612 #1195908 #1195939 #1196079
#1196612
Cross- CVE-2016-10905 CVE-2021-0920 CVE-2022-0001
CVE-2022-0002 CVE-2022-0492 CVE-2022-0617
CVE-2022-24448
CVSS scores:
CVE-2016-10905 (NVD) : 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2016-10905 (SUSE): 5.3 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
CVE-2021-0920 (NVD) : 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2021-0920 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
CVE-2022-24448 (NVD) : 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE-2022-24448 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products:
SUSE Linux Enterprise Server 12-SP2-BCL
https://www.suse.com/security/cve/CVE-2016-10905.html
https://www.suse.com/security/cve/CVE-2021-0920.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://www.suse.com/security/cve/CVE-2022-24448.html
https://bugzilla.suse.com/1146312
https://bugzilla.suse.com/1190717
https://bugzilla.suse.com/1191580
https://bugzilla.suse.com/1193731
https://bugzilla.suse.com/1194463
https://bugzilla.suse.com/1195543
https://bugzilla.suse.com/1195612
https://bugzilla.suse.com/1195908
https://bugzilla.suse.com/1195939
https://bugzilla.suse.com/1196079
https://bugzilla.suse.com/1196612