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CVE-2021-4028

Status Candidate

Overview

A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.

Related Files

Red Hat Security Advisory 2022-0777-01
Posted Mar 9, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0777-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, double free, privilege escalation, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2021-0920, CVE-2021-4028, CVE-2022-0330, CVE-2022-0435, CVE-2022-0516, CVE-2022-22942
SHA-256 | d7facb8cf9f19a1e1eb19f51fbd133172869386079a759a4c1f247f4bd8a6026
Red Hat Security Advisory 2022-0629-01
Posted Feb 23, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0629-01 - 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-2021-0920, CVE-2021-4028, CVE-2021-4155
SHA-256 | 47b3dc904a7204faf6e15c69e500933b4ff798e5f889a832814df22cc9905008
Red Hat Security Advisory 2022-0636-01
Posted Feb 23, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0636-01 - 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-2021-4155
SHA-256 | bda529498837213cadd6b42e364bdc151826b39e673be9a80a83c24a1160ac94
Red Hat Security Advisory 2022-0590-01
Posted Feb 22, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-0590-01 - 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-2021-4155
SHA-256 | 0938412c0f6a72492867ad9c15b093af2fe77335328f5d59beb7ae9e9c61656f
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