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OpenAdvisories
Unscored CVE-2021-45095 EUVD-2021-31886GHSA-827c-f4fv-j8hr

pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.

Published Dec 16, 2021 · Updated Aug 4, 2024 · Assigned by mitre

Package: kernel Package: linux Package: linux Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 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-5.13 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-5.13 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-ibm-5.4 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-5.13 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: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.

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 5.15.15-1 —
Debian 13 linux 5.15.15-1 —
Debian 12 linux 5.15.15-1 —
Debian 11 linux 5.10.92-1 DSA-5050-1
Debian 10 linux 4.19.232-1 DSA-5096-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Debian 9 linux 4.9.303-1 DLA-2940-1
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 5.4.0-105.119 USN-5338-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1069.73 USN-5338-1
Ubuntu 20.04 LTS linux-aws-5.13 5.13.0-1019.21~20.04.1 USN-5337-1
Ubuntu 20.04 LTS linux-azure 5.4.0-1073.76 USN-5338-1
Ubuntu 20.04 LTS linux-azure-5.13 5.13.0-1021.24~20.04.1 USN-5368-1
Ubuntu 20.04 LTS linux-azure-fde 5.4.0-1073.76+cvm1.1 USN-5338-1
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1032.35 USN-5377-1
Ubuntu 20.04 LTS linux-gcp 5.4.0-1068.72 USN-5338-1
Ubuntu 20.04 LTS linux-gcp-5.13 5.13.0-1021.25~20.04.1 USN-5337-1
Ubuntu 20.04 LTS linux-gke 5.4.0-1066.69 USN-5338-1
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1037.38 USN-5338-1
Ubuntu 20.04 LTS linux-hwe-5.13 5.13.0-37.42~20.04.1 USN-5337-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1018.20 USN-5338-1
Ubuntu 20.04 LTS linux-kvm 5.4.0-1059.62 USN-5338-1
Ubuntu 20.04 LTS linux-oem-5.14 5.14.0-1022.24 USN-5278-1
Ubuntu 20.04 LTS linux-oracle 5.4.0-1067.72 USN-5338-1
Ubuntu 20.04 LTS linux-oracle-5.13 5.13.0-1025.30~20.04.1 USN-5368-1
Ubuntu 20.04 LTS linux-raspi 5.4.0-1056.63 USN-5338-1
Ubuntu 20.04 LTS linux-riscv +17 No fix yet —
Ubuntu 18.04 LTS linux 4.15.0-173.182 USN-5339-1
Ubuntu 18.04 LTS linux-aws 4.15.0-1124.133 USN-5339-1
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1069.73~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1134.147 USN-5339-1
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1073.76~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-dell300x 4.15.0-1038.43 USN-5339-1
Ubuntu 18.04 LTS linux-gcp +12 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1119.133 USN-5339-1
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1068.72~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-gke-5.4 5.4.0-1066.69~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-gkeop-5.4 5.4.0-1037.38~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-105.119~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1018.20~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-kvm 4.15.0-1110.113 USN-5339-1
Ubuntu 18.04 LTS linux-oracle 4.15.0-1090.99 USN-5339-1
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1067.72~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1056.63~18.04.1 USN-5338-1
Ubuntu 18.04 LTS linux-raspi2 4.15.0-1106.113 USN-5339-1
Ubuntu 18.04 LTS linux-snapdragon 4.15.0-1123.132 USN-5339-1
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 5.4.0-1046.52 —
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 4.15.0-2064.67 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2046.50 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1081.90 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2029.32 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1072.78 —
Ubuntu Pro 16.04 LTS linux 4.4.0-222.255 USN-5343-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1138.152 USN-5343-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1124.133~16.04.1 USN-5339-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1134.147~16.04.1 USN-5339-1
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1119.133~16.04.1 USN-5339-1
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-173.182~16.04.1 USN-5339-1
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1103.112 USN-5343-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1090.99~16.04.1 USN-5339-1
Ubuntu Pro 14.04 LTS linux No fix yet —
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1102.107 USN-5343-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1134.147~14.04.1 USN-5339-1
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-222.255~14.04.1 USN-5343-1
ReleasePackageFixed inAdvisory
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.49.1 SUSE-SU-2022:0370-1
SLES 15 SP3 kernel-azure +1 5.3.18-150300.38.40.4 SUSE-SU-2022:0363-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.49.1.150300.18.31.1 SUSE-SU-2022:0370-1
SLES 15 SP3 kernel-syms-azure 5.3.18-150300.38.40.1 SUSE-SU-2022:0363-1
SLES 15 SP2 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SLES 15 SP2 kernel-docs +5 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SLES 15 SP1 kernel-docs +5 4.12.14-197.105.1 SUSE-SU-2022:0366-1
SLES 15 kernel-docs +6 4.12.14-150.83.1 SUSE-SU-2022:0367-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.91.1 SUSE-SU-2022:0765-1
SLES 12 SP5 kernel-docs +4 4.12.14-122.113.1 SUSE-SU-2022:0767-1
Show 35 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP4 kernel-syms +2 4.12.14-95.88.1 SUSE-SU-2022:0371-1
SLES 12 SP3 kernel-syms +2 4.4.180-94.153.1 SUSE-SU-2022:0362-1
SLES 12 SP3 kgraft-patch-SLE12-SP3_Update_42 1-4.3.1 SUSE-SU-2022:0362-1
SLES 12 SP2 kernel-syms +2 4.4.121-92.164.1 SUSE-SU-2022:0477-1
SLES 11 SP4 kernel-ec2 +8 3.0.101-108.135.1 SUSE-SU-2022:14905-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SLES for SAP 15 SP1 kernel-docs +4 4.12.14-197.105.1 SUSE-SU-2022:0366-1
SLES for SAP 15 kernel-docs +5 4.12.14-150.83.1 SUSE-SU-2022:0367-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.91.1 SUSE-SU-2022:0765-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.113.1 SUSE-SU-2022:0767-1
SLES for SAP 12 SP4 kernel-syms +2 4.12.14-95.88.1 SUSE-SU-2022:0371-1
SLES for SAP 12 SP3 kernel-syms +2 4.4.180-94.153.1 SUSE-SU-2022:0362-1
SLES for SAP 12 SP3 kgraft-patch-SLE12-SP3_Update_42 1-4.3.1 SUSE-SU-2022:0362-1
SLE Real Time 15 SP2 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SLE Real Time 15 SP2 kernel-docs +4 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.78.1 SUSE-SU-2022:0555-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.49.1 SUSE-SU-2022:0370-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.49.1.150300.18.31.1 SUSE-SU-2022:0370-1
SLE Micro 5.1 kernel-rt 5.3.18-150300.76.1 SUSE-SU-2022:0543-1
SLE Micro 5.0 kernel-default 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SLE Micro 5.0 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SLE Micro 5.0 kernel-rt 5.3.18-73.1 SUSE-SU-2022:0544-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.49.1 SUSE-SU-2022:0370-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_14 1-150300.7.3.1 SUSE-SU-2022:0370-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_24 1-5.3.1 SUSE-SU-2022:0365-1
SLE Live Patching 15 SP1 kernel-default 4.12.14-197.105.1 SUSE-SU-2022:0366-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_28 1-3.3.1 SUSE-SU-2022:0366-1
SLE Live Patching 15 kernel-default 4.12.14-150.83.1 SUSE-SU-2022:0367-1
SLE Live Patching 15 kernel-livepatch-SLE15_Update_27 1-1.5.1 SUSE-SU-2022:0367-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.113.1 SUSE-SU-2022:0767-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_29 1-8.3.1 SUSE-SU-2022:0767-1
SLE Live Patching 12 SP4 kernel-default 4.12.14-95.88.1 SUSE-SU-2022:0371-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_24 1-6.5.1 SUSE-SU-2022:0371-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SLE HPC 15 SP1 kernel-docs +4 4.12.14-197.105.1 SUSE-SU-2022:0366-1
SLE HPC 15 kernel-docs +5 4.12.14-150.83.1 SUSE-SU-2022:0367-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-150300.76.1 SUSE-SU-2022:0543-1
SUSE Real Time Module 15 SP2 kernel-rt +3 5.3.18-73.1 SUSE-SU-2022:0544-1
SUSE OpenStack Cloud Crowbar 9 kernel-syms +2 4.12.14-95.88.1 SUSE-SU-2022:0371-1
SUSE OpenStack Cloud Crowbar 8 kernel-syms +2 4.4.180-94.153.1 SUSE-SU-2022:0362-1
SUSE OpenStack Cloud Crowbar 8 kgraft-patch-SLE12-SP3_Update_42 1-4.3.1 SUSE-SU-2022:0362-1
SUSE OpenStack Cloud 9 kernel-syms +2 4.12.14-95.88.1 SUSE-SU-2022:0371-1
SUSE OpenStack Cloud 8 kernel-syms +2 4.4.180-94.153.1 SUSE-SU-2022:0362-1
SUSE OpenStack Cloud 8 kgraft-patch-SLE12-SP3_Update_42 1-4.3.1 SUSE-SU-2022:0362-1
SUSE Manager Server 4.1 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SUSE Manager Server 4.1 kernel-docs +5 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SUSE Manager Retail Branch Server 4.1 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SUSE Manager Retail Branch Server 4.1 kernel-docs +4 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SUSE Manager Proxy 4.1 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SUSE Manager Proxy 4.1 kernel-docs +4 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SUSE HPE Helion OpenStack 8 kernel-syms +2 4.4.180-94.153.1 SUSE-SU-2022:0362-1
SUSE HPE Helion OpenStack 8 kgraft-patch-SLE12-SP3_Update_42 1-4.3.1 SUSE-SU-2022:0362-1
SUSE Enterprise Storage 7 kernel-default-base 5.3.18-24.102.1.9.48.1 SUSE-SU-2022:0365-1
SUSE Enterprise Storage 7 kernel-docs +5 5.3.18-24.102.1 SUSE-SU-2022:0365-1
SUSE Enterprise Storage 6 kernel-docs +4 4.12.14-197.105.1 SUSE-SU-2022:0366-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.3 dtb-aarch64 +7 5.3.18-150300.59.49.1 openSUSE-SU-2022:0370-1
openSUSE Leap 15.3 kernel-azure +1 5.3.18-150300.38.40.4 openSUSE-SU-2022:0363-1
openSUSE Leap 15.3 kernel-debug +4 4.12.14-197.105.1 openSUSE-SU-2022:0370-1, openSUSE-SU-2022:0366-1
openSUSE Leap 15.3 kernel-default-base 5.3.18-150300.59.49.1.150300.18.31.1 openSUSE-SU-2022:0370-1
openSUSE Leap 15.3 kernel-syms-azure 5.3.18-150300.38.40.1 openSUSE-SU-2022:0363-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.18.1-1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 kernel-uek +34 6.12.0-101.33.4.3.el10uek ELSA-2025-20530, ELSA-2025-20480
Oracle Linux 7 kernel-uek +5 4.1.12-124.62.3.el7uek ELSA-2022-9365, ELSA-2022-9348
Oracle Linux 7 kernel-uek-container +1 5.4.17-2136.307.3.1.el8 ELSA-2022-9368
Oracle Linux 7 perf +3 5.4.17-2136.307.3.1.el7uek ELSA-2022-9365

Advisories 34

References