SUSE-SU-2021:2020-1
SUSE-SU-2021:2020-1 · Security update for the Linux Kernel (Live Patch 24 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_89 fixes several issues. The following issues were fixed: - CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484). - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111). - CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges (bnc#1186060). - CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611). - Fixed a data loss/data corruption that occurs if there is a write error on an md/raid array (bsc#1185680).
Fix available
- Published
- Updated
Stack: system
Affected products and versions
kgraft-patch-sle12-sp4_update_20 SUSE:Linux Enterprise Live Patching 12 SP4
- Affected ranges
- ECOSYSTEM: < 2-2.1
Update to 2-2.1
kgraft-patch-sle12-sp5_update_18 SUSE:Linux Enterprise Live Patching 12 SP5
- Affected ranges
- ECOSYSTEM: < 2-2.1
Update to 2-2.1
kernel-livepatch-sle15-sp1_update_24 SUSE:Linux Enterprise Live Patching 15 SP1
- Affected ranges
- ECOSYSTEM: < 2-2.1
Update to 2-2.1
Original sources
- https://www.suse.com/support/update/announcement/2021/suse-su-20212020-1/
- https://bugzilla.suse.com/1185847
- https://bugzilla.suse.com/1185899
- https://bugzilla.suse.com/1186061
- https://bugzilla.suse.com/1186285
- https://bugzilla.suse.com/1186498
- https://www.suse.com/security/cve/CVE-2021-23134
- https://www.suse.com/security/cve/CVE-2021-32399
- https://www.suse.com/security/cve/CVE-2021-33034
- https://www.suse.com/security/cve/CVE-2021-33200
- https://osv.dev/vulnerability/SUSE-SU-2021:2020-1