CVE-2021-4028

high

Description

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.

References

https://lkml.org/lkml/2021/10/4/697

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

https://access.redhat.com/security/cve/CVE-2021-4028

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74

https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0

Details

Source: MITRE

Published: 2022-08-24

Updated: 2022-08-29

Type: CWE-416