CVE-2021-4204

Priority
Description
[tr3e wang discovered that an OOB write existed in the eBPF subsystem in
the Linux kernel on BPF_RINGBUF.]
Ubuntu-Description
It was discovered that the eBPF implementation in the Linux kernel did not
properly validate the memory size of certain ring buffer operation
arguments. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code.
Mitigation
Disable unprivileged ebpf with:
 sudo sysctl kernel.unprivileged_bpf_disabled=1
Notes
Package
Source: linux (LP Ubuntu Debian)
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.13.0-16.19)
Ubuntu 20.04 LTS:not-affected (5.4.0-9.12)
Ubuntu 21.10:released (5.13.0-25.26)
Ubuntu 16.04 ESM:not-affected (4.4.0-2.16)
Ubuntu 22.04 LTS:not-affected (5.15.0-18.18)
Ubuntu 14.04 ESM:not-affected (3.11.0-12.19)
Patches:
Introduced by
457f44363a8894135c85b7a9afd2bd8196db24ab
Fixed by
local-CVE-2021-4204-fix
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.15.0-1001.1)
Ubuntu 20.04 LTS:not-affected (5.4.0-1005.5)
Ubuntu 21.10:released (5.13.0-1009.10)
Ubuntu 16.04 ESM:not-affected (4.4.0-1001.10)
Ubuntu 22.04 LTS:not-affected (5.15.0-1002.4)
Ubuntu 14.04 ESM:not-affected (4.4.0-1002.2)
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-aws-5.3)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.11.0-1025.27~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.13.0-1011.12~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-aws-5.4)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-1018.18~18.04.1)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:not-affected (4.15.0-1030.31~16.04.1)
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-azure-5.3)
Ubuntu 20.04 LTS:not-affected (5.4.0-1006.6)
Ubuntu 21.10:released (5.13.0-1010.11)
Ubuntu 16.04 ESM:not-affected (4.11.0-1009.9)
Ubuntu 22.04 LTS:not-affected (5.15.0-1001.2)
Ubuntu 14.04 ESM:not-affected (4.15.0-1023.24~14.04.1)
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.15.0-1082.92)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.11.0-1025.27~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.13.0-1012.14~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-azure-5.4)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-1020.20~18.04.1)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-azure-5.3)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:not-affected (5.4.0-1063.66+cvm2.2)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:not-affected (5.4.0-1007.10)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.15.0-1005.8)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 16.04 FIPS Compliant:needs-triage
Ubuntu 20.04 LTS:DNE
Ubuntu 16.04 FIPS Certified:needs-triage
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:not-affected (4.4.0-1074.80)
Ubuntu 18.04 FIPS Certified:needs-triage
Ubuntu 20.04 FIPS Certified:needs-triage
Ubuntu 18.04 FIPS Compliant:needs-triage
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Ubuntu 20.04 FIPS Compliant:needs-triage
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-gcp-5.3)
Ubuntu 20.04 LTS:not-affected (5.4.0-1005.5)
Ubuntu 21.10:released (5.13.0-1010.12)
Ubuntu 16.04 ESM:not-affected (4.10.0-1004.4)
Ubuntu 22.04 LTS:not-affected (5.15.0-1001.3)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.15.0-1071.81)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.11.0-1026.29~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.13.0-1012.15~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-gcp-5.4)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-1019.19~18.04.2)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:not-affected (5.4.0-1033.35)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:not-affected (5.15.0-1002.2)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-1025.25~18.04.1)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:not-affected (5.4.0-1008.9)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-1001.1)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (replaced by linux-hwe-5.4)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:not-affected (4.8.0-39.42~16.04.1)
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.11.0-46.51~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.13.0-25.26~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-37.41~18.04.1)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-hwe-5.4)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:ignored (superseded by linux-hwe)
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:not-affected (5.4.0-1003.4)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:not-affected (5.15.0-1002.2)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-1010.11~18.04.2)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needs-triage
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:not-affected
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needs-triage
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:not-affected
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.15.0-1002.2)
Ubuntu 20.04 LTS:not-affected (5.4.0-1004.4)
Ubuntu 21.10:released (5.13.0-1008.8)
Ubuntu 16.04 ESM:not-affected (4.4.0-1004.9)
Ubuntu 22.04 LTS:not-affected (5.15.0-1002.2)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:not-affected (5.15.0-22.22)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:not-affected (4.4.0-13.29~14.04.1)
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.10.0-1055.58)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.13.0-1026.32)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.14.0-1018.19)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:not-affected (5.17.0-1003.3)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.15.0-1007.9)
Ubuntu 20.04 LTS:not-affected (5.4.0-1005.5)
Ubuntu 21.10:released (5.13.0-1013.16)
Ubuntu 16.04 ESM:not-affected (4.15.0-1007.9~16.04.1)
Ubuntu 22.04 LTS:not-affected (5.15.0-1001.3)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-oracle-5.3)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.11.0-1025.27~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.13.0-1015.19~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (superseded by linux-oracle-5.4)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-1019.19~18.04.1)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:not-affected (5.4.0-1007.7)
Ubuntu 21.10:released (5.13.0-1013.15)
Ubuntu 22.04 LTS:not-affected (5.15.0-1002.2)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (5.4.0-1013.13~18.04.1)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.13.0-1005.5)
Ubuntu 20.04 LTS:ignored (replaced by linux-raspi)
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (superseded by linux-riscv-5.8)
Ubuntu 21.10:released (5.13.0-1008.8)
Ubuntu 22.04 LTS:not-affected (5.15.0-1004.4)
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:released (5.11.0-1026.28~20.04.1)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:DNE
Ubuntu 20.04 LTS:ignored (was needs-triage now end-of-life)
Ubuntu 21.10:DNE
Ubuntu 16.04 ESM:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
Package
Upstream:needed
Ubuntu 18.04 LTS:not-affected (4.4.0-1077.82)
Ubuntu 20.04 LTS:DNE
Ubuntu 21.10:DNE
Ubuntu 22.04 LTS:DNE
Ubuntu 14.04 ESM:DNE
Patches:
More Information

Updated: 2022-06-07 04:18:01 UTC (commit 9d84536e7e8b5e2093ce8097d67faec7c99e03d7)