#VU60797 Use-after-free


Published: 2022-02-22

Vulnerability identifier: #VU60797

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-4028

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor:

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the RDMA listen() function in Linux kernel. A local user can run a specially crafted program to trigger a use-after-free error and execute arbitrary code with elevated privileges.


Mitigation
Install updates from vendor's website.

Vulnerable software versions


External links
http://bugzilla.redhat.com/show_bug.cgi?id=2027201


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability