🛡️ SUSE-SU-2021:4038-1 — kernel-livepatch-sle15-sp1-update-20 (CVE-2021-0941 +1 more)
Description
Security update for the Linux Kernel (Live Patch 20 for SLE 15 SP1)
This update for the Linux Kernel 4.12.14-197_75 fixes several issues.
The following security issues were fixed:
- CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192045).
- CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)
Affected software
SUSE-SU-2021:4038-1 is recorded against 28 packages.
- kernel-livepatch-sle15-sp1-update-20 (fixed in 14-2.2)
- kernel-livepatch-sle15-sp1-update-21 (fixed in 14-2.2)
- kernel-livepatch-sle15-sp1-update-22 (fixed in 13-2.2)
- kernel-livepatch-sle15-sp1-update-23 (fixed in 12-2.2)
- kernel-livepatch-sle15-sp1-update-24 (fixed in 9-2.1)
- kernel-livepatch-sle15-sp1-update-25 (fixed in 8-2.1)
- kernel-livepatch-sle15-sp1-update-26 (fixed in 6-2.1)
- kernel-livepatch-sle15-update-22 (fixed in 13-2.2)
- kernel-livepatch-sle15-update-23 (fixed in 12-2.2)
- kernel-livepatch-sle15-update-24 (fixed in 9-2.1)
- kernel-livepatch-sle15-update-25 (fixed in 6-2.1)
- kgraft-patch-sle12-sp4-update-18 (fixed in 13-2.2)
- kgraft-patch-sle12-sp4-update-19 (fixed in 12-2.2)
- kgraft-patch-sle12-sp4-update-20 (fixed in 9-2.1)
- kgraft-patch-sle12-sp4-update-21 (fixed in 8-2.1)
- kgraft-patch-sle12-sp4-update-22 (fixed in 6-2.1)
- kgraft-patch-sle12-sp5-update-13 (fixed in 14-2.2)
- kgraft-patch-sle12-sp5-update-14 (fixed in 14-2.2)
- kgraft-patch-sle12-sp5-update-15 (fixed in 13-2.2)
- kgraft-patch-sle12-sp5-update-16 (fixed in 12-2.2)
- kgraft-patch-sle12-sp5-update-17 (fixed in 10-2.1)
- kgraft-patch-sle12-sp5-update-18 (fixed in 9-2.1)
- kgraft-patch-sle12-sp5-update-19 (fixed in 7-2.1)
- kgraft-patch-sle12-sp5-update-20 (fixed in 7-2.1)
Show the remaining 4 packages
- kgraft-patch-sle12-sp5-update-21 (fixed in 6-2.1)
- kgraft-patch-sle12-sp5-update-22 (fixed in 5-2.1)
- kgraft-patch-sle12-sp5-update-23 (fixed in 3-2.1)
- kgraft-patch-sle12-sp5-update-24 (fixed in 3-2.1)
Timeline and source
Published on 14 December 2021 and last revised on 2 May 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
www.suse.com (Advisory)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
www.suse.com (Web)
www.suse.com (Web)
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| kernel-livepatch-sle15-sp1-update-20 | — | 14-2.2 |
| kernel-livepatch-sle15-sp1-update-21 | — | 14-2.2 |
| kernel-livepatch-sle15-sp1-update-22 | — | 13-2.2 |
| kernel-livepatch-sle15-sp1-update-23 | — | 12-2.2 |
| kernel-livepatch-sle15-sp1-update-24 | — | 9-2.1 |
| kernel-livepatch-sle15-sp1-update-25 | — | 8-2.1 |
| kernel-livepatch-sle15-sp1-update-26 | — | 6-2.1 |
| kernel-livepatch-sle15-update-22 | — | 13-2.2 |
| kernel-livepatch-sle15-update-23 | — | 12-2.2 |
| kernel-livepatch-sle15-update-24 | — | 9-2.1 |
| kernel-livepatch-sle15-update-25 | — | 6-2.1 |
| kgraft-patch-sle12-sp4-update-18 | — | 13-2.2 |
| kgraft-patch-sle12-sp4-update-19 | — | 12-2.2 |
| kgraft-patch-sle12-sp4-update-20 | — | 9-2.1 |
| kgraft-patch-sle12-sp4-update-21 | — | 8-2.1 |
| kgraft-patch-sle12-sp4-update-22 | — | 6-2.1 |
| kgraft-patch-sle12-sp5-update-13 | — | 14-2.2 |
| kgraft-patch-sle12-sp5-update-14 | — | 14-2.2 |
| kgraft-patch-sle12-sp5-update-15 | — | 13-2.2 |
| kgraft-patch-sle12-sp5-update-16 | — | 12-2.2 |
| kgraft-patch-sle12-sp5-update-17 | — | 10-2.1 |
| kgraft-patch-sle12-sp5-update-18 | — | 9-2.1 |
| kgraft-patch-sle12-sp5-update-19 | — | 7-2.1 |
| kgraft-patch-sle12-sp5-update-20 | — | 7-2.1 |
| kgraft-patch-sle12-sp5-update-21 | — | 6-2.1 |
| kgraft-patch-sle12-sp5-update-22 | — | 5-2.1 |
| kgraft-patch-sle12-sp5-update-23 | — | 3-2.1 |
| kgraft-patch-sle12-sp5-update-24 | — | 3-2.1 |
References
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