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CVE-2022-1966

Status Candidate

Overview

A use-after-free vulnerability was found in the Linux kernel's Netfilter subsystem in net/netfilter/nf_tables_api.c. This flaw allows a local attacker with user access to cause a privilege escalation issue.

Related Files

Red Hat Security Advisory 2022-6271-01
Posted Sep 1, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-6271-01 - This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service
systems | linux, redhat
advisories | CVE-2020-26116, CVE-2020-26137, CVE-2021-3177, CVE-2021-40528, CVE-2022-1012, CVE-2022-1292, CVE-2022-1586, CVE-2022-1729, CVE-2022-1785, CVE-2022-1897, CVE-2022-1927, CVE-2022-1966, CVE-2022-2068, CVE-2022-2097
SHA-256 | 6c172a31e754dec0944ca87e07fccfbf06a5a7e87ead7ebccdee11d2b8bc7849
Kernel Live Patch Security Notice LSN-0089-1
Posted Aug 30, 2022
Authored by Benjamin M. Romer

Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. Ziming Zhang discovered that the netfilter subsystem in the Linux kernel did not properly validate sets with multiple ranged fields. It was discovered that the implementation of POSIX timers in the Linux kernel did not properly clean up timers in some situations. Various other vulnerabilities were also discovered.

tags | advisory, kernel, vulnerability
systems | linux, osx
advisories | CVE-2022-1966, CVE-2022-1972, CVE-2022-21499, CVE-2022-2585, CVE-2022-2586, CVE-2022-2588, CVE-2022-29581, CVE-2022-34918
SHA-256 | 05867268c3cb4a38f1e83386efef57668577cf6a6daf5f223e85f17b2010f8e2
Red Hat Security Advisory 2022-5439-01
Posted Jul 1, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5439-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include heap overflow, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2018-25032, CVE-2022-1271, CVE-2022-1966, CVE-2022-24903
SHA-256 | 3db4a9a3eaef4ae44ffe0e4b1baeea0aa294da5f2930bbfe0457203563dd5c83
Red Hat Security Advisory 2022-5249-01
Posted Jul 1, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5249-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, information leakage, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2022-1012, CVE-2022-1729, CVE-2022-1966, CVE-2022-27666
SHA-256 | 39941dd8b9ab6d237ebb34325a101a531c4026515a0315d722619a2c1ec84cff
Red Hat Security Advisory 2022-5476-01
Posted Jul 1, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5476-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include buffer overflow, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2022-1966, CVE-2022-27666
SHA-256 | 6ee33a81ccb7adc6d430f5454bb1faecc13229f4ff5fb2ac6ea006cea6c7e26f
Red Hat Security Advisory 2022-5232-01
Posted Jun 29, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5232-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2022-1729, CVE-2022-1966
SHA-256 | e7b32b68738cd15e4d85200acfe3259a979a45c8ae639f93888acd0746ff9db1
Red Hat Security Advisory 2022-5216-01
Posted Jun 29, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5216-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2022-1966
SHA-256 | 751eb92792eaf96de4008c9c343177cd48f2642fa67e4fbef7b42e16395e0a2a
Red Hat Security Advisory 2022-5220-01
Posted Jun 29, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5220-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, information leakage, memory leak, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2020-29368, CVE-2022-1012, CVE-2022-1729, CVE-2022-1966, CVE-2022-27666
SHA-256 | d235089aa486460b95ba63e4f9b401e13d9c5735ac72bcbbd7294c2f50d63512
Debian Security Advisory 5161-1
Posted Jun 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5161-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2022-0494, CVE-2022-0854, CVE-2022-1012, CVE-2022-1729, CVE-2022-1786, CVE-2022-1789, CVE-2022-1852, CVE-2022-1966, CVE-2022-1972, CVE-2022-1974, CVE-2022-1975, CVE-2022-21499, CVE-2022-28893
SHA-256 | eebb8217aef2d4f3e2465f6dfc1ee816598f41dcba98e4335ef3537950a2ab17
Red Hat Security Advisory 2022-5214-01
Posted Jun 28, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5214-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include buffer overflow, information leakage, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2022-1012, CVE-2022-1966, CVE-2022-27666
SHA-256 | ae303be6ead12de097f5e045c71ccc4d79caf6c0f11ef0e37f02bd5693cbd48d
Red Hat Security Advisory 2022-5224-01
Posted Jun 28, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5224-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, information leakage, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-29368, CVE-2022-1012, CVE-2022-1729, CVE-2022-1966, CVE-2022-27666
SHA-256 | cf2209ef5b5bf17b9c809a07608c00d1e4d6b97951545747f05996c767fc8084
Red Hat Security Advisory 2022-5236-01
Posted Jun 28, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5236-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2022-1729, CVE-2022-1966
SHA-256 | 6ccb4193a00621b9d88afc6a8a376c75e88b9c390886b6ac1884dcf6a26d4980
Red Hat Security Advisory 2022-5267-01
Posted Jun 28, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-5267-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, information leakage, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2022-1012, CVE-2022-1729, CVE-2022-1966, CVE-2022-27666
SHA-256 | 32204717cc396ecad24069d0575f44ce5737cb77a1dd4953111ace6c82c559f3
Kernel Live Patch Security Notice LSN-0087-1
Posted Jun 20, 2022
Authored by Benjamin M. Romer

Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. Ziming Zhang discovered that the netfilter subsystem in the Linux kernel did not properly validate sets with multiple ranged fields. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux
advisories | CVE-2022-1966, CVE-2022-1972
SHA-256 | da3d1ebf8a062796a4bf895e4a7b5810ebe229e969e2a6e2a191ecc53f90dbfe
Ubuntu Security Notice USN-5471-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5471-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-1012, CVE-2022-1205, CVE-2022-1734, CVE-2022-1836, CVE-2022-1966, CVE-2022-1972, CVE-2022-21499, CVE-2022-29968
SHA-256 | ccede091516fe62bd32719c398450aaaf07d69cacfd458d05e1db5e69a87a58b
Ubuntu Security Notice USN-5469-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5469-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0168, CVE-2022-1048, CVE-2022-1158, CVE-2022-1195, CVE-2022-1198, CVE-2022-1199, CVE-2022-1204, CVE-2022-1205, CVE-2022-1263, CVE-2022-1353, CVE-2022-1516, CVE-2022-1651, CVE-2022-1671, CVE-2022-1966, CVE-2022-1972, CVE-2022-21499, CVE-2022-28356, CVE-2022-28388, CVE-2022-28389, CVE-2022-28390
SHA-256 | 4ce717877a9ad9825a852ffb1c677186dfde79c8f40631b1893230bba71c8954
Ubuntu Security Notice USN-5470-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5470-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-1836, CVE-2022-1966, CVE-2022-1972, CVE-2022-21499
SHA-256 | 6d8499c8fe2c8dc60eb72de37197f7c84d247d4ccffc3da9150bf2ce0fcf67a4
Ubuntu Security Notice USN-5468-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5468-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-1158, CVE-2022-1966, CVE-2022-1972, CVE-2022-21499, CVE-2022-24958, CVE-2022-28390
SHA-256 | 76e53ad0646856837ed8b45ef5764a7babb449c61ac464ee275775b370d96109
Ubuntu Security Notice USN-5467-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5467-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-3772, CVE-2021-4197, CVE-2022-1011, CVE-2022-1158, CVE-2022-1198, CVE-2022-1353, CVE-2022-1516, CVE-2022-1966, CVE-2022-21499, CVE-2022-23039, CVE-2022-23040, CVE-2022-24958, CVE-2022-26966, CVE-2022-28356, CVE-2022-28389, CVE-2022-28390
SHA-256 | 00844e617969c8e349b621d9028477a097d6b0006a1d340d3f86e5feae7ec286
Ubuntu Security Notice USN-5466-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5466-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-3772, CVE-2021-4149, CVE-2022-1016, CVE-2022-1419, CVE-2022-1966, CVE-2022-21499, CVE-2022-28356, CVE-2022-28390
SHA-256 | 9e093140c942146c4f472438fa3c252299e1fbbca9160eb536180ba6308f3bc7
Ubuntu Security Notice USN-5465-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5465-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-1966, CVE-2022-21499, CVE-2022-30594
SHA-256 | 5a8b0e348f998aafc513f85ce879db8aea235142f10eff3dd0b37e0a04e9023c
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