SUSE-SU-2022:0757-1
Vulnerability Summary
Timeline
Description
Security update for the Linux Kernel The SUSE Linux Enterprise 12 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-2022-0847: Fixed a vulnerability were a local attackers could overwrite data in arbitrary (read-only) files (bsc#1196584). - 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-2022-0644: Fixed a denial of service by a local user. A assertion failure could be triggered in kernel_read_file_from_fd() (bsc#1196155). - CVE-2021-44879: In gc_data_segment() in fs/f2fs/gc.c, special files were not considered, which lead to a move_data_page NULL pointer dereference (bsc#1195987). - CVE-2022-24959: Fixed a memory leak in yam_siocdevprivate() in drivers/net/hamradio/yam.c (bsc#1195897). - CVE-2022-0487: A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove() in drivers/memstick/host/rtsx_usb_ms.c (bsc#1194516). - 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). The following non-security bugs were fixed: - NFSv4.x: by default serialize open/close operations (bsc#1114893 bsc#1195934). - crypto: af_alg - get_page upon reassignment to TX SGL (bsc#1195840). - hv_netvsc: fix network namespace issues with VF support (bsc#1107207). - hv_netvsc: move VF to same namespace as netvsc device (bsc#1107207). - lib/iov_iter: initialize 'flags' in new pipe_buffer (bsc#1196584).
Affected Systems
- suse•kernel-default&distro=SUSE Linux Enterprise High Availability Extension 12 SP4
< 4.12.14-95.93.1
- suse•kernel-default&distro=SUSE Linux Enterprise Live Patching 12 SP4
< 4.12.14-95.93.1
- suse•kernel-default&distro=SUSE Linux Enterprise Server 12 SP4-LTSS
< 4.12.14-95.93.1
- suse•kernel-default&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP4
< 4.12.14-95.93.1
- suse•kernel-default&distro=SUSE OpenStack Cloud 9
< 4.12.14-95.93.1
- suse•kernel-default&distro=SUSE OpenStack Cloud Crowbar 9
< 4.12.14-95.93.1
- suse•kernel-source&distro=SUSE Linux Enterprise Server 12 SP4-LTSS
< 4.12.14-95.93.1
- suse•kernel-source&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP4
< 4.12.14-95.93.1
- suse•kernel-source&distro=SUSE OpenStack Cloud 9
< 4.12.14-95.93.1
- suse•kernel-source&distro=SUSE OpenStack Cloud Crowbar 9
< 4.12.14-95.93.1
- suse•kernel-syms&distro=SUSE Linux Enterprise Server 12 SP4-LTSS
< 4.12.14-95.93.1
- suse•kernel-syms&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP4
< 4.12.14-95.93.1
- suse•kernel-syms&distro=SUSE OpenStack Cloud 9
< 4.12.14-95.93.1
- suse•kernel-syms&distro=SUSE OpenStack Cloud Crowbar 9
< 4.12.14-95.93.1
- suse•kgraft-patch-SLE12-SP4_Update_25&distro=SUSE Linux Enterprise Live Patching 12 SP4
< 1-6.5.1
References (30)
- https://www.suse.com/support/update/announcement/2022/suse-su-20220757-1/
- https://bugzilla.suse.com/1107207
- https://bugzilla.suse.com/1114893
- https://bugzilla.suse.com/1185973
- https://bugzilla.suse.com/1191580
- https://bugzilla.suse.com/1194516
- https://bugzilla.suse.com/1195536
- https://bugzilla.suse.com/1195543
- https://bugzilla.suse.com/1195612
- https://bugzilla.suse.com/1195840
- https://bugzilla.suse.com/1195897
- https://bugzilla.suse.com/1195908
- https://bugzilla.suse.com/1195934
- https://bugzilla.suse.com/1195949
- https://bugzilla.suse.com/1195987
- https://bugzilla.suse.com/1196079
- https://bugzilla.suse.com/1196155
- https://bugzilla.suse.com/1196584
- https://bugzilla.suse.com/1196601
- https://bugzilla.suse.com/1196612
- https://www.suse.com/security/cve/CVE-2021-44879
- https://www.suse.com/security/cve/CVE-2022-0001
- https://www.suse.com/security/cve/CVE-2022-0002
- https://www.suse.com/security/cve/CVE-2022-0487
- https://www.suse.com/security/cve/CVE-2022-0492
- https://www.suse.com/security/cve/CVE-2022-0617
- https://www.suse.com/security/cve/CVE-2022-0644
- https://www.suse.com/security/cve/CVE-2022-0847
- https://www.suse.com/security/cve/CVE-2022-24448
- https://www.suse.com/security/cve/CVE-2022-24959