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CVE-2021-26708

Description

A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.

Risk Information

Base Score
7.0
MODERATE
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
1.002

Associated Vulnerability

VulnerabilityOS Platform
Linux kernel (USN-4727-1) linux-image-aws_5.8.0.1023.25_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-gcp_5.8.0.1022.22_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-gke_5.8.0.1022.22_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-kvm_5.8.0.1018.20_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-azure_5.8.0.1022.22_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-oracle_5.8.0.1020.19_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-generic_5.8.0.43.48_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-virtual_5.8.0.43.48_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-oem-20.04_5.6.0.1047.43_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-lowlatency_5.8.0.43.48_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.6.0-1047-oem_5.6.0-1047.51_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-1018-kvm_5.8.0-1018.20_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-1022-gcp_5.8.0-1022.23_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-1023-aws_5.8.0-1023.25_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-1022-azure_5.8.0-1022.24_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-43-generic_5.8.0-43.49_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-43-generic_5.8.0-43.49~20.04.1_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-1020-oracle_5.8.0-1020.21_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-generic-hwe-20.04_5.8.0.43.49~20.04.29_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-virtual-hwe-20.04_5.8.0.43.49~20.04.29_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-43-lowlatency_5.8.0-43.49_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-5.8.0-43-lowlatency_5.8.0-43.49~20.04.1_amd64.debLinux
Linux kernel (USN-4727-1) linux-image-lowlatency-hwe-20.04_5.8.0.43.49~20.04.29_amd64.debLinux
Bpftool update (ELSA-2021-1093) bpftool-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel update (ELSA-2021-1093) kernel-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-abi-whitelists update (ELSA-2021-1093) kernel-abi-whitelists-4.18.0-240.22.1.el8_3.noarch.rpmLinux
Kernel-core update (ELSA-2021-1093) kernel-core-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-cross-headers update (ELSA-2021-1093) kernel-cross-headers-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-debug update (ELSA-2021-1093) kernel-debug-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-debug-core update (ELSA-2021-1093) kernel-debug-core-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-debug-devel update (ELSA-2021-1093) kernel-debug-devel-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-debug-modules update (ELSA-2021-1093) kernel-debug-modules-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-debug-modules-extra update (ELSA-2021-1093) kernel-debug-modules-extra-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-devel update (ELSA-2021-1093) kernel-devel-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-doc update (ELSA-2021-1093) kernel-doc-4.18.0-240.22.1.el8_3.noarch.rpmLinux
Kernel-headers update (ELSA-2021-1093) kernel-headers-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-modules update (ELSA-2021-1093) kernel-modules-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-modules-extra update (ELSA-2021-1093) kernel-modules-extra-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-tools update (ELSA-2021-1093) kernel-tools-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-tools-libs update (ELSA-2021-1093) kernel-tools-libs-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Kernel-tools-libs-devel update (ELSA-2021-1093) kernel-tools-libs-devel-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Perf update (ELSA-2021-1093) perf-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
Python3-perf update (ELSA-2021-1093) python3-perf-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update bpftool-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-abi-whitelists-4.18.0-240.22.1.el8_3.noarch.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-core-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-cross-headers-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-debug-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-debug-core-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-debug-devel-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-debug-modules-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-debug-modules-extra-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-devel-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-doc-4.18.0-240.22.1.el8_3.noarch.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-headers-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-modules-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-modules-extra-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-tools-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update kernel-tools-libs-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update perf-4.18.0-240.22.1.el8_3.x86_64.rpmLinux
(RHSA-2021:1093) kernel security, bug fix, and enhancement update python3-perf-4.18.0-240.22.1.el8_3.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234