SUSE-SU-2021:0809-1
SUSE-SU-2021:0809-1 · Security update for the Linux Kernel (Live Patch 21 for SLE 15 SP1)
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This update for the Linux Kernel 4.12.14-197_78 fixes several issues. The following security issues were fixed: - CVE-2020-29368: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179664). - CVE-2021-3347: Fixed a use-after-free in the PI futexes during fault handling, allowing local users to execute code in the kernel (bsc#1181553). - CVE-2020-27786: Fixed a potential user after free which could have led to memory corruption or privilege escalation (bsc#1179616). - CVE-2021-0342: Fixed a potential memory corruption due to a use after free which could have led to local escalation of privilege with System execution privileges required (bsc#1180859).
Fix available
- Published
- Updated
Stack: system
Affected products and versions
kgraft-patch-sle12-sp5_update_14 SUSE:Linux Enterprise Live Patching 12 SP5
- Affected ranges
- ECOSYSTEM: < 3-2.2
Update to 3-2.2
kernel-livepatch-sle15-sp1_update_21 SUSE:Linux Enterprise Live Patching 15 SP1
- Affected ranges
- ECOSYSTEM: < 3-2.2
Update to 3-2.2
Original sources
- https://www.suse.com/support/update/announcement/2021/suse-su-20210809-1/
- https://bugzilla.suse.com/1179616
- https://bugzilla.suse.com/1179664
- https://bugzilla.suse.com/1180859
- https://bugzilla.suse.com/1181553
- https://www.suse.com/security/cve/CVE-2020-27786
- https://www.suse.com/security/cve/CVE-2020-29368
- https://www.suse.com/security/cve/CVE-2021-0342
- https://www.suse.com/security/cve/CVE-2021-3347
- https://osv.dev/vulnerability/SUSE-SU-2021:0809-1