CWE
362 416
Advisory Published
Updated

CVE-2021-4203: Race Condition

First published: Wed Sep 29 2021(Updated: )

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.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:4.18.0-372.9.1.rt7.166.el8
0:4.18.0-372.9.1.rt7.166.el8
redhat/kernel<0:4.18.0-372.9.1.el8
0:4.18.0-372.9.1.el8
redhat/kernel-rt<0:4.18.0-305.57.1.rt7.129.el8_4
0:4.18.0-305.57.1.rt7.129.el8_4
redhat/kernel<0:4.18.0-305.57.1.el8_4
0:4.18.0-305.57.1.el8_4
redhat/kernel<5.15
5.15
Linux Linux kernel<5.15
Linux Linux kernel=5.15
Linux Linux kernel=5.15-rc1
Linux Linux kernel=5.15-rc2
Linux Linux kernel=5.15-rc3
Netapp Active Iq Unified Manager Vmware Vsphere
NetApp E-Series SANtricity OS Controller>=11.0.0<=11.70.2
Netapp Element Software
Netapp Hci Management Node
Netapp Solidfire
All of
Netapp Bootstrap Os
Netapp Hci Compute Node
All of
Netapp A700s Firmware
Netapp A700s
All of
Netapp H300s Firmware
Netapp H300s
All of
Netapp H500s Firmware
Netapp H500s
All of
Netapp H700s Firmware
Netapp H700s
All of
Netapp H410s Firmware
Netapp H410s
All of
Netapp H410c Firmware
Netapp H410c
Oracle Communications Cloud Native Core Binding Support Function=22.1.3
Oracle Communications Cloud Native Core Network Exposure Function=22.1.1
Oracle Communications Cloud Native Core Policy=22.2.0
Netapp Bootstrap Os
Netapp Hci Compute Node
Netapp A700s Firmware
Netapp A700s
Netapp H300s Firmware
Netapp H300s
Netapp H500s Firmware
Netapp H500s
Netapp H700s Firmware
Netapp H700s
Netapp H410s Firmware
Netapp H410s
Netapp H410c Firmware
Netapp H410c
ubuntu/linux<4.15.0-163.171
4.15.0-163.171
ubuntu/linux<5.4.0-91.102
5.4.0-91.102
ubuntu/linux<5.13.0-23.23
5.13.0-23.23
ubuntu/linux<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux<4.4.0-239.273
4.4.0-239.273
ubuntu/linux-aws<4.15.0-1116.123
4.15.0-1116.123
ubuntu/linux-aws<5.4.0-1060.63
5.4.0-1060.63
ubuntu/linux-aws<5.13.0-1008.9
5.13.0-1008.9
ubuntu/linux-aws<4.4.0-1117.123
4.4.0-1117.123
ubuntu/linux-aws<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws<4.4.0-1155.170
4.4.0-1155.170
ubuntu/linux-aws-5.0<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-5.11<5.11.0-1023.24~20.04.1
5.11.0-1023.24~20.04.1
ubuntu/linux-aws-5.11<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-5.13<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-5.3<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-5.4<5.4.0-1060.63~18.04.1
5.4.0-1060.63~18.04.1
ubuntu/linux-aws-5.4<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-5.8<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-fips<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-hwe<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-aws-hwe<4.15.0-1116.123~16.04.1
4.15.0-1116.123~16.04.1
ubuntu/linux-azure<5.4.0-1064.67
5.4.0-1064.67
ubuntu/linux-azure<5.13.0-1009.10
5.13.0-1009.10
ubuntu/linux-azure<4.15.0-1127.140~14.04.1
4.15.0-1127.140~14.04.1
ubuntu/linux-azure<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure<4.15.0-1127.140~16.04.1
4.15.0-1127.140~16.04.1
ubuntu/linux-azure-4.15<4.15.0-1127.140
4.15.0-1127.140
ubuntu/linux-azure-4.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-5.11<5.11.0-1023.24~20.04.1
5.11.0-1023.24~20.04.1
ubuntu/linux-azure-5.11<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-5.13<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-5.3<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-5.4<5.4.0-1064.67~18.04.1
5.4.0-1064.67~18.04.1
ubuntu/linux-azure-5.4<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-edge<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-fde<5.4.0-1064.67
5.4.0-1064.67
ubuntu/linux-azure-fde<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-fde-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-azure-fips<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-bluefield<5.4.0-1022.25
5.4.0-1022.25
ubuntu/linux-bluefield<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-dell300x<4.15.0-1031.36
4.15.0-1031.36
ubuntu/linux-dell300x<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-fips<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp<5.4.0-1058.62
5.4.0-1058.62
ubuntu/linux-gcp<5.13.0-1008.9
5.13.0-1008.9
ubuntu/linux-gcp<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp<4.15.0-1112.126~16.04.1
4.15.0-1112.126~16.04.1
ubuntu/linux-gcp-4.15<4.15.0-1112.126
4.15.0-1112.126
ubuntu/linux-gcp-4.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp-5.11<5.11.0-1024.26~20.04.1
5.11.0-1024.26~20.04.1
ubuntu/linux-gcp-5.11<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp-5.13<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp-5.3<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp-5.4<5.4.0-1058.62~18.04.1
5.4.0-1058.62~18.04.1
ubuntu/linux-gcp-5.8<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gcp-fips<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gke<5.4.0-1056.59
5.4.0-1056.59
ubuntu/linux-gke<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gke-4.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gke-5.0<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gke-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gke-5.3<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gke-5.4<5.4.0-1056.59~18.04.1
5.4.0-1056.59~18.04.1
ubuntu/linux-gke-5.4<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gkeop<5.4.0-1027.28
5.4.0-1027.28
ubuntu/linux-gkeop<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gkeop-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-gkeop-5.4<5.4.0-1027.28~18.04.1
5.4.0-1027.28~18.04.1
ubuntu/linux-gkeop-5.4<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-hwe<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-hwe<4.15.0-163.171~16.04.1
4.15.0-163.171~16.04.1
ubuntu/linux-hwe-5.11<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-hwe-5.13<5.13.0-23.23~20.04.2
5.13.0-23.23~20.04.2
ubuntu/linux-hwe-5.13<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-hwe-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-hwe-5.4<5.4.0-91.102~18.04.1
5.4.0-91.102~18.04.1
ubuntu/linux-hwe-5.4<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-hwe-5.8<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-hwe-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-hwe-edge<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-ibm<5.4.0-1008.9
5.4.0-1008.9
ubuntu/linux-ibm<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-ibm-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-ibm-5.4<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-intel<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-intel-5.13<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-intel-iotg<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-intel-iotg-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-iot<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-kvm<4.15.0-1103.105
4.15.0-1103.105
ubuntu/linux-kvm<5.4.0-1050.52
5.4.0-1050.52
ubuntu/linux-kvm<5.13.0-1007.7
5.13.0-1007.7
ubuntu/linux-kvm<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-kvm<4.4.0-1118.128
4.4.0-1118.128
ubuntu/linux-laptop<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-lowlatency<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-lowlatency-hwe-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-lowlatency-hwe-5.19<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-lowlatency-hwe-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-lts-xenial<4.4.0-239.273~14.04.1
4.4.0-239.273~14.04.1
ubuntu/linux-lts-xenial<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-nvidia<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-nvidia-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-5.10<5.10.0-1051.53
5.10.0-1051.53
ubuntu/linux-oem-5.10<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-5.13<5.13.0-1026.32
5.13.0-1026.32
ubuntu/linux-oem-5.13<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-5.14<5.14.0-1007.7
5.14.0-1007.7
ubuntu/linux-oem-5.17<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-5.6<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-6.0<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-6.1<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-6.8<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oem-osp1<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oracle<4.15.0-1084.92
4.15.0-1084.92
ubuntu/linux-oracle<5.4.0-1058.62
5.4.0-1058.62
ubuntu/linux-oracle<5.13.0-1011.13
5.13.0-1011.13
ubuntu/linux-oracle<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oracle<4.15.0-1084.92~16.04.1
4.15.0-1084.92~16.04.1
ubuntu/linux-oracle-5.0<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oracle-5.11<5.11.0-1023.24~20.04.1
5.11.0-1023.24~20.04.1
ubuntu/linux-oracle-5.11<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oracle-5.13<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oracle-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oracle-5.3<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-oracle-5.4<5.4.0-1058.62~18.04.1
5.4.0-1058.62~18.04.1
ubuntu/linux-oracle-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-raspi<5.4.0-1047.52
5.4.0-1047.52
ubuntu/linux-raspi<5.13.0-1012.14
5.13.0-1012.14
ubuntu/linux-raspi<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-raspi-5.4<5.4.0-1047.52~18.04.1
5.4.0-1047.52~18.04.1
ubuntu/linux-raspi-5.4<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-raspi2<4.15.0-1099.106
4.15.0-1099.106
ubuntu/linux-raspi2<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-raspi2-5.3<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-riscv<5.13.0-1007.7
5.13.0-1007.7
ubuntu/linux-riscv<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-riscv-5.11<5.11.0-1024.25~20.04.1
5.11.0-1024.25~20.04.1
ubuntu/linux-riscv-5.11<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-riscv-5.15<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-riscv-5.8<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-riscv-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-snapdragon<4.15.0-1116.125
4.15.0-1116.125
ubuntu/linux-snapdragon<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-starfive<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-starfive-6.5<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
ubuntu/linux-xilinx-zynqmp<5.15~<4.4.288<5.4.151
5.15~
4.4.288
5.4.151
debian/linux
5.10.218-1
5.10.221-1
6.1.94-1
6.1.99-1
6.9.8-1
6.9.9-1

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

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Reference Links

Parent vulnerabilities

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