Related Vulnerabilities: CVE-2021-4028  

A security issue in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup 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.

Severity Medium

Remote No

Type Privilege escalation

Description

A security issue in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup 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.

AVG-1881 linux-hardened 5.14.21.hardened1-1 Medium Vulnerable

AVG-1880 linux-zen 5.15.5.zen1-1 Medium Vulnerable

AVG-1879 linux 5.15.5.arch4-1 Medium Vulnerable

AVG-1741 linux-lts 5.10.82-1 Medium Vulnerable

https://bugzilla.redhat.com/show_bug.cgi?id=2027201