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Unscored CVE-2021-4203 EUVD-2021-34061GHSA-rh28-76xv-jcqc

A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and c…

Published Mar 25, 2022 · Updated Aug 3, 2024 · Assigned by redhat

Package: linux Package: linux Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-edge Package: linux-azure-fips Package: linux-bluefield Package: linux-dell300x Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-kvm Package: linux-lts-xenial Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.6 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.8 Package: linux-snapdragon Package: linux-vmware Ecosystem: Debian Ecosystem: Ubuntu

Description

A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.

Affected products

VendorProductAffectedFixed
— kernel kernel 5.15 rc4 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 5.14.12-1 —
Debian 13 linux 5.14.12-1 —
Debian 12 linux 5.14.12-1 —
Debian 10 linux 4.19.232-1 DSA-5096-1
Debian 9 linux-4.19 4.19.232-1~deb9u1 DLA-2941-1
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux-realtime +1 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-91.102 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1060.63 —
Ubuntu 20.04 LTS linux-aws-5.11 +2 5.11.0-1023.24~20.04.1 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1064.67 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1022.25 —
Ubuntu 20.04 LTS linux-gcp +1 5.4.0-1058.62 —
Ubuntu 20.04 LTS linux-gcp-5.11 5.11.0-1024.26~20.04.1 —
Ubuntu 20.04 LTS linux-gke 5.4.0-1056.59 —
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1027.28 —
Ubuntu 20.04 LTS linux-hwe-5.13 5.13.0-23.23~20.04.2 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1008.9 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1050.52 —
Ubuntu 20.04 LTS linux-oem-5.10 5.10.0-1051.53 —
Ubuntu 20.04 LTS linux-oem-5.13 5.13.0-1026.32 —
Ubuntu 20.04 LTS linux-oem-5.14 5.14.0-1007.7 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1047.52 —
Ubuntu 20.04 LTS linux-riscv +10 No fix yet —
Ubuntu 20.04 LTS linux-riscv-5.11 5.11.0-1024.25~20.04.1 —
Ubuntu 18.04 LTS linux 4.15.0-163.171 —
Ubuntu 18.04 LTS linux-aws 4.15.0-1116.123 —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1060.63~18.04.1 —
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1127.140 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1064.67~18.04.1 —
Ubuntu 18.04 LTS linux-dell300x 4.15.0-1031.36 —
Ubuntu 18.04 LTS linux-gcp +12 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1112.126 —
Ubuntu 18.04 LTS linux-gcp-5.4 +1 5.4.0-1058.62~18.04.1 —
Ubuntu 18.04 LTS linux-gke-5.4 5.4.0-1056.59~18.04.1 —
Ubuntu 18.04 LTS linux-gkeop-5.4 5.4.0-1027.28~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-91.102~18.04.1 —
Ubuntu 18.04 LTS linux-kvm 4.15.0-1103.105 —
Ubuntu 18.04 LTS linux-oracle 4.15.0-1084.92 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1047.52~18.04.1 —
Ubuntu 18.04 LTS linux-raspi2 4.15.0-1099.106 —
Ubuntu 18.04 LTS linux-snapdragon 4.15.0-1116.125 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 8 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1069.73+fips2 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1073.76+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1037.43 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1067.71~20.04.1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2057.59 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2039.43 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1073.82 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2022.24 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1088.95 —
Ubuntu Pro 16.04 LTS linux 4.4.0-239.273 USN-6014-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1155.170 USN-6001-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1116.123~16.04.1 —
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1127.140~16.04.1 —
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1112.126~16.04.1 —
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-163.171~16.04.1 —
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1118.128 USN-6014-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1084.92~16.04.1 —
Ubuntu Pro 14.04 LTS linux No fix yet —
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1117.123 USN-6013-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1127.140~14.04.1 —
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-239.273~14.04.1 USN-6014-1
ReleasePackageFixed inAdvisory
RHEL 8 kernel-rt +12 4.18.0-372.9.1.rt7.166.el8 RHSA-2022:1975
RHEL 8 perf +26 4.18.0-372.9.1.el8 RHSA-2022:1988
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 8.4 EUS kernel-rt +12 4.18.0-305.57.1.rt7.129.el8_4 RHSA-2022:5633
RHEL 8.4 EUS perf +26 4.18.0-305.57.1.el8_4 RHSA-2022:5626

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 8 perf +19 4.18.0-372.9.1.el8 ALSA-2022:1988

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-372.9.1.el8 RLSA-2022:1988
Rocky Linux 8 kernel-rt 4.18.0-372.9.1.rt7.166.el8 RLSA-2022:1975
ReleasePackageFixed inAdvisory
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.93.1 SUSE-SU-2022:3264-1
SLES 15 SP3 kernel-azure +2 5.3.18-150300.38.80.1 SUSE-SU-2022:3609-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.93.1.150300.18.54.1 SUSE-SU-2022:3264-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SLES 15 SP2 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SLES 15 SP1 kernel-docs +5 4.12.14-150100.197.123.1 SUSE-SU-2023:1848-1, SUSE-SU-2023:0768-1, SUSE-SU-2022:3408-1
SLES 15 kernel-docs +6 4.12.14-150000.150.101.1 SUSE-SU-2022:3291-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.109.1 SUSE-SU-2022:3282-1
SLES 12 SP5 kernel-docs 4.12.14-122.133.2 SUSE-SU-2023:0634-1, SUSE-SU-2022:3265-1
SLES 12 SP5 kernel-syms +3 4.12.14-122.133.1 SUSE-SU-2023:0634-1, SUSE-SU-2022:3265-1
Show 26 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP4 drbd 9.0.14+git.62f906cf-4.26.2 SUSE-SU-2023:2232-1
SLES 12 SP4 kernel-syms +2 4.12.14-95.108.1 SUSE-SU-2023:2232-1, SUSE-SU-2023:0852-1, SUSE-SU-2022:3274-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SLES for SAP 15 SP1 kernel-docs +4 4.12.14-150100.197.123.1 SUSE-SU-2023:1848-1, SUSE-SU-2023:0768-1, SUSE-SU-2022:3408-1
SLES for SAP 15 kernel-docs +5 4.12.14-150000.150.101.1 SUSE-SU-2022:3291-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.109.1 SUSE-SU-2022:3282-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.133.1 SUSE-SU-2023:0634-1, SUSE-SU-2022:3265-1
SLES for SAP 12 SP4 kernel-syms +2 4.12.14-95.108.1 SUSE-SU-2022:3274-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.100.1 SUSE-SU-2023:0747-1, SUSE-SU-2022:3422-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.93.1 SUSE-SU-2022:3264-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.93.1.150300.18.54.1 SUSE-SU-2022:3264-1
SLE Micro 5.2 kernel-rt 5.3.18-150300.106.1 SUSE-SU-2022:3809-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.93.1 SUSE-SU-2022:3264-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.93.1.150300.18.54.1 SUSE-SU-2022:3264-1
SLE Micro 5.1 kernel-rt 5.3.18-150300.106.1 SUSE-SU-2022:3809-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.93.1 SUSE-SU-2022:3264-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_24 1-150300.7.3.1 SUSE-SU-2022:3264-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_30 1-150200.5.3.1 SUSE-SU-2022:3450-1
SLE Live Patching 15 SP1 kernel-default 4.12.14-150100.197.123.1 SUSE-SU-2023:1848-1, SUSE-SU-2023:0768-1, SUSE-SU-2022:3408-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_34 1-150100.3.3.1 SUSE-SU-2022:3408-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_38 1-150100.3.3.2 SUSE-SU-2023:0768-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_39 1-150100.3.5.1 SUSE-SU-2023:1848-1
SLE Live Patching 15 kernel-default 4.12.14-150000.150.101.1 SUSE-SU-2022:3291-1
SLE Live Patching 15 kernel-livepatch-SLE15_Update_33 1-150000.1.3.1 SUSE-SU-2022:3291-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.133.1 SUSE-SU-2023:0634-1, SUSE-SU-2022:3265-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_35 +1 1-8.3.1 SUSE-SU-2023:0634-1, SUSE-SU-2022:3265-1
SLE Live Patching 12 SP4 kernel-default 4.12.14-95.108.1 SUSE-SU-2023:2232-1, SUSE-SU-2023:0852-1, SUSE-SU-2022:3274-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_30 1-6.3.1 SUSE-SU-2022:3274-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_34 1-6.3.4 SUSE-SU-2023:0852-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_35 1-6.5.1 SUSE-SU-2023:2232-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SLE HPC 15 SP1 kernel-docs +4 4.12.14-150100.197.123.1 SUSE-SU-2023:1848-1, SUSE-SU-2023:0768-1, SUSE-SU-2022:3408-1
SLE HPC 15 kernel-docs +5 4.12.14-150000.150.101.1 SUSE-SU-2022:3291-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-150300.106.1 SUSE-SU-2022:3809-1
SUSE OpenStack Cloud Crowbar 9 kernel-syms +2 4.12.14-95.108.1 SUSE-SU-2023:2232-1, SUSE-SU-2023:0852-1, SUSE-SU-2022:3274-1
SUSE OpenStack Cloud 9 kernel-syms +2 4.12.14-95.108.1 SUSE-SU-2023:2232-1, SUSE-SU-2023:0852-1, SUSE-SU-2022:3274-1
SUSE Manager Server 4.1 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SUSE Manager Server 4.1 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SUSE Manager Retail Branch Server 4.1 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SUSE Manager Retail Branch Server 4.1 kernel-docs +4 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SUSE Manager Proxy 4.1 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SUSE Manager Proxy 4.1 kernel-docs +4 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SUSE Enterprise Storage 7 kernel-default-base 5.3.18-150200.24.129.1.150200.9.61.1 SUSE-SU-2022:3450-1
SUSE Enterprise Storage 7 kernel-docs +5 5.3.18-150200.24.129.1 SUSE-SU-2022:3450-1
SUSE Enterprise Storage 6 kernel-docs +4 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.4 dtb-aarch64 5.3.18-150300.59.93.1 SUSE-SU-2022:3264-1
openSUSE Leap 15.4 kernel-debug +4 4.12.14-150100.197.123.1 SUSE-SU-2023:1848-1, SUSE-SU-2023:0768-1, SUSE-SU-2022:3408-1
openSUSE Leap 15.3 dtb-aarch64 +7 5.3.18-150300.59.93.1 SUSE-SU-2022:3264-1
openSUSE Leap 15.3 kernel-azure +2 5.3.18-150300.38.80.1 SUSE-SU-2022:3609-1
openSUSE Leap 15.3 kernel-debug +4 4.12.14-150100.197.123.1 SUSE-SU-2022:3408-1, SUSE-SU-2022:3264-1
openSUSE Leap 15.3 kernel-default-base 5.3.18-150300.59.93.1.150300.18.54.1 SUSE-SU-2022:3264-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.2 kernel-default 5.3.18-150300.59.93.1 SUSE-SU-2022:3264-1
openSUSE Leap Micro 5.2 kernel-default-base 5.3.18-150300.59.93.1.150300.18.54.1 SUSE-SU-2022:3264-1
openSUSE Leap Micro 5.2 kernel-rt 5.3.18-150300.106.1 SUSE-SU-2022:3809-1

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 perf +19 4.18.0-372.9.1.el8 ELSA-2022-1988
Oracle Linux 7 kernel-uek +5 4.1.12-124.62.3.el7uek ELSA-2022-9348

Advisories 33

References