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CVE-2021-22600

Published: 26 January 2022

A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755

From the Ubuntu security team

It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux-azure-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal
Released (5.13.0-1014.16~20.04.1)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
xenial
Released (4.15.0-169.177~16.04.1)
jammy Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
bionic
Released (5.4.0-100.113~18.04.1)
jammy Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.11)
impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-hwe-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.13)
impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-hwe-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal
Released (5.13.0-30.33~20.04.1)
jammy Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
bionic Ignored
(superseded by linux-hwe-5.4)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

trusty Not vulnerable
(4.4.0-13.29~14.04.1)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream
Released (5.16~rc6)
xenial Not vulnerable
(4.4.0-1004.9)
bionic
Released (4.15.0-1107.109)
focal
Released (5.4.0-1056.58)
impish
Released (5.13.0-1013.14)
jammy Not vulnerable
(5.15.0-1002.2)
linux-aws-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
bionic
Released (5.4.0-1066.69~18.04.1)
jammy Does not exist

linux-aws-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-aws-5.11)
impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-aws-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal Ignored
(was pending [5.11.0-1029.32~20.04.1] now end-of-life)
jammy Does not exist

linux-aws-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal
Released (5.13.0-1014.15~20.04.1)
jammy Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
xenial
Released (4.15.0-1120.128~16.04.1)
jammy Does not exist

linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
trusty
Released (4.15.0-1131.144~14.04.1)
upstream
Released (5.16~rc6)
xenial
Released (4.15.0-1131.144~16.04.1)
focal
Released (5.4.0-1070.73)
impish
Released (5.13.0-1014.16)
jammy Not vulnerable
(5.15.0-1001.2)
linux-azure-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
bionic
Released (4.15.0-1131.144)
jammy Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
bionic
Released (5.4.0-1070.73~18.04.1)
jammy Does not exist

linux-azure-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-azure-5.11)
impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-azure-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal Ignored
(was pending [5.11.0-1029.32~20.04.2] now end-of-life)
jammy Does not exist

linux-bluefield
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal
Released (5.4.0-1028.31)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic
Released (4.15.0-1035.40)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-azure-5.3)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1065.69)
upstream
Released (5.16~rc6)
xenial
Released (4.15.0-1116.130~16.04.1)
impish
Released (5.13.0-1015.18)
jammy Not vulnerable
(5.15.0-1001.3)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
bionic
Released (4.15.0-1116.130)
jammy Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
bionic
Released (5.4.0-1065.69~18.04.1)
jammy Does not exist

linux-gcp-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-gcp-5.11)
impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-gcp-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal Ignored
(was pending [5.11.0-1030.34~20.04.3] now end-of-life)
jammy Does not exist

linux-gke
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(reached end of standard support)
bionic Does not exist

impish Does not exist

focal
Released (5.4.0-1061.64)
upstream
Released (5.16~rc6)
jammy Not vulnerable
(5.15.0-1002.2)
linux-gke-4.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gke-5.3)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-gke-5.4)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic
Released (5.4.0-1061.64~18.04.1)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-gkeop
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal
Released (5.4.0-1034.35)
jammy Needs triage

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
bionic
Released (5.4.0-1034.35~18.04.1)
jammy Does not exist

linux-ibm
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal
Released (5.4.0-1015.16)
jammy Not vulnerable
(5.15.0-1002.2)
linux-intel-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
trusty Does not exist

upstream
Released (5.16~rc6)
xenial
Released (4.15.0-1087.95~16.04.1)
bionic
Released (4.15.0-1087.95)
focal
Released (5.4.0-1064.68)
impish
Released (5.13.0-1018.22)
jammy Not vulnerable
(5.15.0-1001.3)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic
Released (5.4.0-1064.68~18.04.1)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-oracle-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-oracle-5.11)
impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-oracle-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal Ignored
(was pending [5.11.0-1029.32~20.04.1] now end-of-life)
jammy Does not exist

linux-oem
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Ignored
(superseded by linux-hwe)
focal Does not exist

impish Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-oem-5.10
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal Ignored
(was needed now end-of-life)
jammy Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal Ignored
(was needed now end-of-life)
jammy Does not exist

linux-oem-5.14
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal
Released (5.14.0-1022.24)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

bionic Ignored
(was needs-triage now end-of-life)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal
Released (5.4.0-1053.60)
impish
Released (5.13.0-1017.19)
upstream
Released (5.16~rc6)
jammy Not vulnerable
(5.15.0-1002.2)
linux-raspi2
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic
Released (4.15.0-1103.110)
focal Ignored
(replaced by linux-raspi)
impish Does not exist

upstream
Released (5.16~rc6)
xenial Ignored
(was needs-triage now end-of-life)
jammy Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Ignored
(superseded by linux-raspi-5.4)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1053.60~18.04.1)
focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.8)
impish
Released (5.13.0-1012.14)
upstream
Released (5.16~rc6)
jammy Not vulnerable
(5.15.0-1004.4)
linux-riscv-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.11)
impish Does not exist

upstream
Released (5.16~rc6)
jammy Does not exist

linux-riscv-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal Ignored
(was pending [5.11.0-1030.34] now end-of-life)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
trusty Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
xenial Ignored
(was needs-triage now end-of-life)
bionic
Released (4.15.0-1120.129)
jammy Does not exist

linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-169.177)
focal
Released (5.4.0-100.113)
trusty Not vulnerable
(3.11.0-12.19)
upstream
Released (5.16~rc6)
xenial Not vulnerable
(4.4.0-2.16)
impish
Released (5.13.0-30.33)
jammy Not vulnerable
(5.15.0-17.17)
Patches:
Introduced by

61fad6816fc10fb8793a925d5c1256d1c3db0cd2

Fixed by ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
linux-aws
Launchpad, Ubuntu, Debian
trusty Not vulnerable
(4.4.0-1002.2)
upstream
Released (5.16~rc6)
xenial Not vulnerable
(4.4.0-1001.10)
bionic
Released (4.15.0-1121.129)
focal
Released (5.4.0-1066.69)
impish
Released (5.13.0-1014.15)
jammy Not vulnerable
(5.15.0-1002.4)
linux-fips
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
xenial Not vulnerable
(4.4.0-1074.80)
jammy Does not exist

linux-oracle-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal
Released (5.13.0-1018.22~20.04.1)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-gcp-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

focal
Released (5.13.0-1015.18~20.04.1)
upstream
Released (5.16~rc6)
jammy Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
bionic
Released (5.4.0-1015.16~18.04.1)
jammy Does not exist

linux-azure-fde
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

impish Does not exist

upstream
Released (5.16~rc6)
focal Not vulnerable
(5.4.0-1063.66+cvm2.2)
jammy Needs triage

linux-lowlatency
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Not vulnerable
(5.15.0-22.22)
upstream
Released (5.16~rc6)
linux-oem-5.17
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Not vulnerable
(5.17.0-1003.3)
upstream
Released (5.16~rc6)
linux-intel-iotg
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

impish Does not exist

jammy Not vulnerable

upstream Needs triage

linux-intel-iotg-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

impish Does not exist

jammy Does not exist

upstream Needs triage

linux-lowlatency-hwe-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

linux-hwe-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

linux-aws-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

jammy Does not exist

upstream Needs triage

focal Not vulnerable

linux-gcp-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

linux-gke-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage

linux-azure-5.15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable

jammy Does not exist

upstream Needs triage