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SUSE-SU-2021:4038-1
Not scored
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)
Exploit probability
Not scored
Published
December 14, 2021
Required by
Not available
Last source change
May 2, 2025
02 / AFFECTED SOFTWARE
Affected packages
SUSE:Linux Enterprise Live Patching 12 SP4
kgraft-patch-SLE12-SP4_Update_22
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_13
SUSE:Linux Enterprise Live Patching 12 SP4
kgraft-patch-SLE12-SP4_Update_18
SUSE:Linux Enterprise Live Patching 12 SP4
kgraft-patch-SLE12-SP4_Update_19
SUSE:Linux Enterprise Live Patching 12 SP4
kgraft-patch-SLE12-SP4_Update_20
SUSE:Linux Enterprise Live Patching 12 SP4
kgraft-patch-SLE12-SP4_Update_21
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_14
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_15
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_16
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_17
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_18
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_19
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_20
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_21
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_22
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_23
SUSE:Linux Enterprise Live Patching 12 SP5
kgraft-patch-SLE12-SP5_Update_24
SUSE:Linux Enterprise Live Patching 15
kernel-livepatch-SLE15_Update_22
SUSE:Linux Enterprise Live Patching 15
kernel-livepatch-SLE15_Update_23
SUSE:Linux Enterprise Live Patching 15
kernel-livepatch-SLE15_Update_24
SUSE:Linux Enterprise Live Patching 15
kernel-livepatch-SLE15_Update_25
SUSE:Linux Enterprise Live Patching 15 SP1
kernel-livepatch-SLE15-SP1_Update_20
SUSE:Linux Enterprise Live Patching 15 SP1
kernel-livepatch-SLE15-SP1_Update_21
SUSE:Linux Enterprise Live Patching 15 SP1
kernel-livepatch-SLE15-SP1_Update_22
SUSE:Linux Enterprise Live Patching 15 SP1
kernel-livepatch-SLE15-SP1_Update_23
SUSE:Linux Enterprise Live Patching 15 SP1
kernel-livepatch-SLE15-SP1_Update_24
SUSE:Linux Enterprise Live Patching 15 SP1
kernel-livepatch-SLE15-SP1_Update_25
SUSE:Linux Enterprise Live Patching 15 SP1
kernel-livepatch-SLE15-SP1_Update_26
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
SUSE-SU-2021:4038-1
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)
View original source ↗
05 / REFERENCES
Further evidence