CVE-2021-4028

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

24/08/2022

Last modified:

10/02/2023

Description

A flaw in the Linux kernel&#39;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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.10 (including)	5.10.71 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.14.10 (excluding)
cpe:2.3:o:suse:linux_enterprise:15.0:sp3::::::
cpe:2.3:o:suse:linux_enterprise:15.0:sp4::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-4028

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools