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OpenAdvisories
Medium · 6.7 CVE-2023-32269 EUVD-2023-36523GHSA-jmv4-pg4w-272q

An issue was discovered in the Linux kernel before 6.1.11. In net/netrom/af_netrom.c, there is a use-after-free because accept is also allo…

Published May 5, 2023 · Updated May 5, 2025 · Assigned by mitre

Package: kernel Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 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-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 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-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 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-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lts-xenial Package: linux-nvidia Package: linux-nvidia-tegra-5.15 Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 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-5.15 Package: linux-riscv-5.8 Package: linux-snapdragon Package: linux-vmware Package: linux-xilinx-zynqmp Ecosystem: Azure Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

An issue was discovered in the Linux kernel before 6.1.11. In net/netrom/af_netrom.c, there is a use-after-free because accept is also allowed for a successfully connected AF_NETROM socket. However, in order for an attacker to exploit this, the system must have netrom routing configured or the attacker must have the CAP_NET_ADMIN capability.

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 6.1.11-1 —
Debian 13 linux 6.1.11-1 —
Debian 12 linux 6.1.11-1 —
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1017.19 —
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-72.79 USN-6080-1
Ubuntu 22.04 LTS linux-allwinner-5.19 5.19.0-1012.12~22.04.1 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1036.40 USN-6080-1
Ubuntu 22.04 LTS linux-azure 5.15.0-1038.45 USN-6080-1
Ubuntu 22.04 LTS linux-azure-5.19 5.19.0-1026.29~22.04.1 USN-6079-1
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1038.45.1 USN-6080-1
Ubuntu 22.04 LTS linux-gcp 5.15.0-1034.42 USN-6090-1
Ubuntu 22.04 LTS linux-gke +1 5.15.0-1033.38 USN-6090-1, USN-6080-1
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1020.25 USN-6090-1
Ubuntu 22.04 LTS linux-hwe-5.19 5.19.0-42.43~22.04.1 USN-6096-1
Ubuntu 22.04 LTS linux-ibm 5.15.0-1030.33 USN-6080-1
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1030.35 USN-6133-1
Ubuntu 22.04 LTS linux-lowlatency-hwe-5.19 5.19.0-1024.25~22.04.1 —
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1025.25 —
Ubuntu 22.04 LTS linux-oem-6.0 6.0.0-1021.21 USN-6385-1
Ubuntu 22.04 LTS linux-oem-6.1 6.1.0-1008.8 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1035.41 USN-6080-1
Ubuntu 22.04 LTS linux-raspi 5.15.0-1029.31 USN-6085-1
Ubuntu 22.04 LTS linux-riscv +2 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-149.166 USN-6094-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1102.110 USN-6094-1
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1036.40~20.04.1 USN-6080-1
Ubuntu 20.04 LTS linux-azure 5.4.0-1108.114 USN-6094-1
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1038.45~20.04.1 USN-6080-1
Ubuntu 20.04 LTS linux-azure-fde-5.15 5.15.0-1038.45~20.04.1.1 USN-6080-1
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1064.70 USN-6132-1
Ubuntu 20.04 LTS linux-gcp 5.4.0-1105.114 USN-6094-1
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1034.42~20.04.1 USN-6090-1
Ubuntu 20.04 LTS linux-gke 5.4.0-1099.106 USN-6094-1
Ubuntu 20.04 LTS linux-gke-5.15 5.15.0-1033.38~20.04.1 USN-6090-1
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1069.73 USN-6094-1
Ubuntu 20.04 LTS linux-gkeop-5.15 5.15.0-1020.25~20.04.1 —
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-72.79~20.04.1 USN-6080-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1049.54 USN-6094-1
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1030.35~20.04.1 USN-6134-1
Ubuntu 20.04 LTS linux-iot 5.4.0-1017.18 USN-6256-1
Ubuntu 20.04 LTS linux-kvm 5.4.0-1091.97 USN-6094-1
Ubuntu 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1014.14~20.04.1 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1101.110 USN-6118-1
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1035.41~20.04.1 USN-6090-1
Ubuntu 20.04 LTS linux-raspi 5.4.0-1085.96 USN-6109-1
Ubuntu 20.04 LTS linux-riscv +23 No fix yet —
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1033.37~20.04.1 —
Ubuntu 20.04 LTS linux-xilinx-zynqmp 5.4.0-1024.28 USN-6222-1
Ubuntu 18.04 LTS linux 4.15.0-211.222 USN-6081-1
Ubuntu 18.04 LTS linux-aws 4.15.0-1156.169 USN-6081-1
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1103.111~18.04.1 USN-6132-1
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1165.180 USN-6092-1
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1108.114~18.04.1 USN-6094-1
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1150.166 USN-6084-1
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1105.114~18.04.1 USN-6094-1
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-149.166~18.04.1 USN-6094-1
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1049.54~18.04.1 USN-6094-1
Ubuntu 18.04 LTS linux-kvm 4.15.0-1140.145 USN-6081-1
Ubuntu 18.04 LTS linux-oracle 4.15.0-1119.130 USN-6084-1
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1101.110~18.04.1 USN-6118-1
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1085.96~18.04.1 USN-6109-1
Ubuntu 18.04 LTS linux-raspi2 4.15.0-1132.140 USN-6095-1
Ubuntu 18.04 LTS linux-snapdragon 4.15.0-1150.160 USN-6095-1
Show 10 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1028.33 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1038.41 —
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 5.4.0-1102.110+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1108.114+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1077.86 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1105.114+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2095.101 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2074.80 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1111.122 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2058.63 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1093.100 —
Ubuntu Pro 16.04 LTS linux 4.4.0-245.279 USN-6388-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1161.176 USN-6388-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1156.169~16.04.1 USN-6081-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1165.180~16.04.1 USN-6092-1
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1150.166~16.04.1 USN-6095-1
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-211.222~16.04.1 USN-6095-1
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1124.134 USN-6388-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1119.130~16.04.1 USN-6084-1
Ubuntu Pro 14.04 LTS linux No fix yet —
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1123.129 USN-6388-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1165.180~14.04.1 USN-6092-1
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-245.279~14.04.1 USN-6388-1
ReleasePackageFixed inAdvisory
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.154.1.150200.9.75.1 SUSE-SU-2023:2651-1
SLES 15 SP2 kernel-docs 5.3.18-150200.24.154.2 SUSE-SU-2023:2651-1
SLES 15 SP2 kernel-syms +4 5.3.18-150200.24.154.1 SUSE-SU-2023:2651-1
SLES 15 SP1 kernel-docs +5 4.12.14-150100.197.148.1 SUSE-SU-2023:2534-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.136.1 SUSE-SU-2023:2507-1
SLES 12 SP5 kernel-docs +4 4.12.14-122.162.1 SUSE-SU-2023:2538-1
SLES 12 SP4 kernel-syms +2 4.12.14-95.128.1 SUSE-SU-2023:2537-1
Show 26 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP2 kernel-syms +2 4.4.121-92.205.1 SUSE-SU-2023:2805-1
SLES 11 SP4 kernel-ec2 +5 3.0.101-108.141.1 SUSE-SU-2023:2506-1
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SLES for SAP 15 SP3 kernel-docs +5 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.154.1.150200.9.75.1 SUSE-SU-2023:2651-1
SLES for SAP 15 SP2 kernel-docs 5.3.18-150200.24.154.2 SUSE-SU-2023:2651-1
SLES for SAP 15 SP2 kernel-syms +4 5.3.18-150200.24.154.1 SUSE-SU-2023:2651-1
SLES for SAP 15 SP1 kernel-docs +4 4.12.14-150100.197.148.1 SUSE-SU-2023:2534-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.136.1 SUSE-SU-2023:2507-1
SLES for SAP 12 SP5 kernel-syms +2 4.12.14-122.162.1 SUSE-SU-2023:2538-1
SLES for SAP 12 SP4 kernel-syms +2 4.12.14-95.128.1 SUSE-SU-2023:2537-1
SLE Real Time 15 SP3 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SLE Real Time 15 SP3 kernel-docs +5 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.127.1 SUSE-SU-2023:2501-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SLE Micro 5.2 kernel-rt 5.3.18-150300.130.1 SUSE-SU-2023:2502-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SLE Micro 5.1 kernel-rt 5.3.18-150300.130.1 SUSE-SU-2023:2502-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_33 1-150300.7.3.1 SUSE-SU-2023:2611-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.154.1 SUSE-SU-2023:2651-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_37 1-150200.5.3.1 SUSE-SU-2023:2651-1
SLE Live Patching 15 SP1 kernel-default 4.12.14-150100.197.148.1 SUSE-SU-2023:2534-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_41 1-150100.3.3.1 SUSE-SU-2023:2534-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.162.1 SUSE-SU-2023:2538-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_44 1-8.3.1 SUSE-SU-2023:2538-1
SLE Live Patching 12 SP4 kernel-default 4.12.14-95.128.1 SUSE-SU-2023:2537-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_36 1-6.3.1 SUSE-SU-2023:2537-1
SLE HPC 15 SP3 kernel-64kb +6 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.154.1.150200.9.75.1 SUSE-SU-2023:2651-1
SLE HPC 15 SP2 kernel-docs 5.3.18-150200.24.154.2 SUSE-SU-2023:2651-1
SLE HPC 15 SP2 kernel-syms +4 5.3.18-150200.24.154.1 SUSE-SU-2023:2651-1
SLE HPC 15 SP1 kernel-docs +4 4.12.14-150100.197.148.1 SUSE-SU-2023:2534-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-150300.130.1 SUSE-SU-2023:2502-1
SUSE OpenStack Cloud Crowbar 9 kernel-syms +2 4.12.14-95.128.1 SUSE-SU-2023:2537-1
SUSE OpenStack Cloud 9 kernel-syms +2 4.12.14-95.128.1 SUSE-SU-2023:2537-1
SUSE Manager Server 4.2 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SUSE Manager Server 4.2 kernel-source +3 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SUSE Manager Proxy 4.2 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SUSE Manager Proxy 4.2 kernel-source +2 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SUSE Enterprise Storage 7.1 kernel-64kb +6 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.124.1.150300.18.72.1 SUSE-SU-2023:2611-1
SUSE Enterprise Storage 7 kernel-default-base 5.3.18-150200.24.154.1.150200.9.75.1 SUSE-SU-2023:2651-1
SUSE Enterprise Storage 7 kernel-docs 5.3.18-150200.24.154.2 SUSE-SU-2023:2651-1
SUSE Enterprise Storage 7 kernel-syms +4 5.3.18-150200.24.154.1 SUSE-SU-2023:2651-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.5 kernel-vanilla 4.12.14-150100.197.148.1 SUSE-SU-2023:2534-1
openSUSE Leap 15.4 dtb-aarch64 5.3.18-150300.59.124.1 SUSE-SU-2023:2611-1
openSUSE Leap 15.4 kernel-debug +4 4.12.14-150100.197.148.1 SUSE-SU-2023:2534-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 2 (CBL-Mariner) kernel 5.15.112.1-1 —

Advisories 31

References