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CVE-2021-4083

Status Candidate

Overview

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.

Related Files

Red Hat Security Advisory 2022-1699-01
Posted May 13, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1699-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.7.50.

tags | advisory
systems | linux, redhat
advisories | CVE-2021-4083, CVE-2022-0492, CVE-2022-21426, CVE-2022-21434, CVE-2022-21443, CVE-2022-21476, CVE-2022-21496, CVE-2022-24769, CVE-2022-25636
SHA-256 | fbbfbdf0a9151383c4fd51b75bed69402cdeb86e35b863354d293fba3587a9fd
Red Hat Security Advisory 2022-2189-01
Posted May 12, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-2189-01 - 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-2021-4028, CVE-2021-4083, CVE-2022-0492
SHA-256 | fd1c2dd2553ad38432826289b02c39ffabff76be6059f360d709310e87bcf72f
Red Hat Security Advisory 2022-1988-01
Posted May 11, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1988-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, information leakage, integer overflow, memory leak, out of bounds read, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability, memory leak
systems | linux, redhat
advisories | CVE-2020-0404, CVE-2020-13974, CVE-2020-27820, CVE-2020-4788, CVE-2021-0941, CVE-2021-20322, CVE-2021-21781, CVE-2021-26401, CVE-2021-29154, CVE-2021-3612, CVE-2021-3669, CVE-2021-37159, CVE-2021-3743, CVE-2021-3744, CVE-2021-3752, CVE-2021-3759, CVE-2021-3764, CVE-2021-3772, CVE-2021-3773, CVE-2021-4002, CVE-2021-4037, CVE-2021-4083, CVE-2021-4157, CVE-2021-41864, CVE-2021-4197, CVE-2021-4203, CVE-2021-42739, CVE-2021-4305
SHA-256 | 37a2bc5df5427ed04000a8d10823bd2aed8f25a960acdbe741e5cfa028d617df
Red Hat Security Advisory 2022-1975-01
Posted May 11, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1975-01 - 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, denial of service, information leakage, integer overflow, out of bounds read, out of bounds write, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-0404, CVE-2020-13974, CVE-2020-27820, CVE-2021-0941, CVE-2021-20322, CVE-2021-26401, CVE-2021-29154, CVE-2021-3612, CVE-2021-3669, CVE-2021-37159, CVE-2021-3743, CVE-2021-3744, CVE-2021-3752, CVE-2021-3759, CVE-2021-3764, CVE-2021-3772, CVE-2021-3773, CVE-2021-4002, CVE-2021-4037, CVE-2021-4083, CVE-2021-4157, CVE-2021-41864, CVE-2021-4197, CVE-2021-4203, CVE-2021-42739, CVE-2021-43389, CVE-2021-43976
SHA-256 | 76e7a83f67a9594d044f0555940c9cdc95fcacfd7cb6fe3ce07a4e4115106e22
Red Hat Security Advisory 2022-1715-01
Posted May 5, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1715-01 - Red Hat Advanced Cluster Management for Kubernetes 2.3.10 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs. Issues addressed include bypass and traversal vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2018-25032, CVE-2021-4028, CVE-2021-4083, CVE-2021-4115, CVE-2022-0155, CVE-2022-0235, CVE-2022-0536, CVE-2022-0613, CVE-2022-0711, CVE-2022-1154, CVE-2022-1271, CVE-2022-21803, CVE-2022-24723, CVE-2022-24785, CVE-2022-25636
SHA-256 | 3d159d78f952dd38855eff547380186ff43d2649b5b56d70f73248bbeae9a417
Red Hat Security Advisory 2022-1455-01
Posted Apr 21, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1455-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include out of bounds write and privilege escalation vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-4083, CVE-2022-0492, CVE-2022-25636
SHA-256 | 875d0e42f4b97c80ca5787d522296033e722015e393e57c94404ccc7805a955e
Red Hat Security Advisory 2022-1418-01
Posted Apr 20, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1418-01 - 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 out of bounds write and privilege escalation vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-4083, CVE-2022-0492, CVE-2022-25636
SHA-256 | 2eab67c4f841bc45e94ce58e73ca60e7ba690017b6dcc37ecba54fb3786bc710
Red Hat Security Advisory 2022-1413-01
Posted Apr 20, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1413-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include out of bounds write and privilege escalation vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-4083, CVE-2022-0492, CVE-2022-25636
SHA-256 | e29d570eaf4be8d9d8c2a0c59251fd78375f239719aba399dda2f75b42e91bc1
Red Hat Security Advisory 2022-1373-01
Posted Apr 13, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1373-01 - 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-2021-0920, CVE-2021-4028, CVE-2021-4083, CVE-2022-22942
SHA-256 | f57c5b22cef3163af1c33c2e82dbe6b00782a303fe5a5f924bc6584e6a35967b
Red Hat Security Advisory 2022-1324-01
Posted Apr 12, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1324-01 - 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-2021-0920, CVE-2021-4028, CVE-2021-4083, CVE-2022-22942
SHA-256 | f3f9284cf1bc21bb7a95874ee074c18fe28b6177e869e7d37775b4f41b0f333e
Red Hat Security Advisory 2022-1263-01
Posted Apr 7, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1263-01 - 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 buffer overflow, code execution, integer overflow, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, overflow, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2021-0920, CVE-2021-4028, CVE-2021-4083, CVE-2021-4155, CVE-2021-45417, CVE-2022-0330, CVE-2022-0778, CVE-2022-22942, CVE-2022-24407, CVE-2022-25235, CVE-2022-25236, CVE-2022-25315
SHA-256 | 8099208ae1c6aef8c286b95bb11ce25104d7ea396a4083c6ef51ad9bcd09650a
Red Hat Security Advisory 2022-1198-01
Posted Apr 6, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1198-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-4028, CVE-2021-4083
SHA-256 | 47c69d053beee523bd34e31d3001a567b3fc39616998c0a8ad4600ed5e2ffd22
Red Hat Security Advisory 2022-1199-01
Posted Apr 6, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1199-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-4028, CVE-2021-4083
SHA-256 | d2f59fb33c830ae3cf50a46dcaabcdff4dc2533b81cb2fc68e1cfba410e7a165
Red Hat Security Advisory 2022-1185-01
Posted Apr 5, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1185-01 - 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 a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-4028, CVE-2021-4083
SHA-256 | 3fe5c9c82f411f9df5b2c87a382cb51a229fc30effdb1d454542d21b1ac57ee5
Ubuntu Security Notice USN-5362-1
Posted Apr 1, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5362-1 - Nick Gregory discovered that the Linux kernel incorrectly handled network offload functionality. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano Giuffrida discovered that hardware mitigations added by ARM to their processors to address Spectre-BTI were insufficient. A local attacker could potentially use this to expose sensitive information.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-4083, CVE-2021-4090, CVE-2021-4155, CVE-2021-42327, CVE-2022-0001, CVE-2022-0185, CVE-2022-0330, CVE-2022-0435, CVE-2022-0492, CVE-2022-0516, CVE-2022-0742, CVE-2022-0847, CVE-2022-22942, CVE-2022-23222, CVE-2022-23960, CVE-2022-25636
SHA-256 | 15aee9355fdfa4005c244c11432f609c7d439bd4c9e2bb1fc22da50bd8c0cbbd
Ubuntu Security Notice USN-5361-1
Posted Apr 1, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5361-1 - It was discovered that the VFIO PCI driver in the Linux kernel did not properly handle attempts to access disabled memory spaces. A local attacker could use this to cause a denial of service. Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly verify certain fragmented frames. A physically proximate attacker could possibly use this issue to inject or decrypt packets.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2020-12888, CVE-2020-26141, CVE-2020-26145, CVE-2020-3702, CVE-2021-0920, CVE-2021-0935, CVE-2021-28964, CVE-2021-31916, CVE-2021-37159, CVE-2021-39636, CVE-2021-4083, CVE-2021-42739, CVE-2021-43976, CVE-2021-45486
SHA-256 | c315b3f99c654dc04603839d125f1fe9f0159f30ff823c00d323d0852627c9cf
Red Hat Security Advisory 2022-1107-01
Posted Mar 29, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1107-01 - 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-2021-0920, CVE-2021-4083, CVE-2022-0330, CVE-2022-22942
SHA-256 | 548b5969a215b63408fc1ce2bb76de0939dc126576a8bb0a74acf9244630ce2b
Red Hat Security Advisory 2022-1104-01
Posted Mar 29, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1104-01 - 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-2020-0466, CVE-2021-0920, CVE-2021-4083, CVE-2022-0330
SHA-256 | 3a2b18dd4f7e48dfdae427f12981505f47927eedf6ee8f7a30597c2ad433c204
Red Hat Security Advisory 2022-1103-01
Posted Mar 29, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-1103-01 - 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-2021-0920, CVE-2021-4083, CVE-2022-0330, CVE-2022-22942
SHA-256 | cd3da72f66a9d3620802f57598d3a1225d845ad596f9cc707e08f89d7fbccd8c
Red Hat Security Advisory 2022-0958-01
Posted Mar 18, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0958-01 - 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-2021-0920, CVE-2021-4028, CVE-2021-4083, CVE-2021-4155, CVE-2022-0330, CVE-2022-0492, CVE-2022-22942
SHA-256 | 9beb6e392ff5610d64056a391fbce786ec02c468a9da9985a7ea90ed21f4bcb8
Red Hat Security Advisory 2022-0925-01
Posted Mar 15, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0925-01 - 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-2021-4083, CVE-2022-0330, CVE-2022-0492, CVE-2022-22942
SHA-256 | f949b1965a1e3b036d9406147fcdb7963214330cbd5427b2f99a92c543ca0fa7
Red Hat Security Advisory 2022-0851-01
Posted Mar 14, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0851-01 - 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-2021-0920, CVE-2021-4028, CVE-2021-4083, CVE-2022-0330, CVE-2022-0492, CVE-2022-22942
SHA-256 | 20936ed56440d9255c743c01f214a0ea6ebb400369bd6f3ef8c893527cab6940
Red Hat Security Advisory 2022-0821-01
Posted Mar 11, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0821-01 - 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-2021-4083, CVE-2022-0330, CVE-2022-0492, CVE-2022-0847, CVE-2022-22942
SHA-256 | 8f41f8ad52dc356b0e7b8b759a7812d1ffd1da736c34eb2fee4b1469bb8bbcf0
Red Hat Security Advisory 2022-0823-01
Posted Mar 11, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0823-01 - 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-2021-0920, CVE-2021-4028, CVE-2021-4083, CVE-2022-0330, CVE-2022-0492, CVE-2022-0847, CVE-2022-22942
SHA-256 | 2dc0babe89e52b532d1bec806d8732281457a31f2c3a3371bcedc2acf82182e1
Red Hat Security Advisory 2022-0820-01
Posted Mar 11, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0820-01 - 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-2021-4083, CVE-2022-0330, CVE-2022-0492, CVE-2022-0847, CVE-2022-22942
SHA-256 | a6b8233b9ffbe93e159b3cd0ab93db97120972df8603080b6689b78bba054393
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