CVE-2021-4028

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.

CVSS v3.0 7.8 HIGH

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://lkml.org/lkml/2021/10/4/697	Mailing List Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2027201	Issue Tracking Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-4028	Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74	Mailing List Patch Vendor Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0	Issue Tracking Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20221228-0002/	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:suse:linux_enterprise:15.0:sp4::::::
	cpe:2.3:o:suse:linux_enterprise:15.0:sp3::::::

Information

Published : 2022-08-24 09:15

Updated : 2023-02-10 08:18

NVD link : CVE-2021-4028

Mitre link : CVE-2021-4028

JSON object : View

CWE

CWE-416

Use After Free

Products Affected

suse

linux_enterprise

linux

linux_kernel

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7.8 /10