What is CVE-2022-28356?

CVE-2022-28356 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2022-28356 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-28356?

CVE-2022-28356 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-28356?

No patch is currently available for CVE-2022-28356. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2022-28356 actively exploited?

CVE-2022-28356 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-28356

Medium

In the Linux kernel before 5.17.1, a refcount leak bug was found in net/llc/af_llc.c.

Package Linux Kernel

Published 2022-04-02

Last modified 2025-05-05

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

The following references provide additional information about CVE-2022-28356 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Openwall
http://www.openwall.com/lists/oss-security/2022/04/06/1

Exploit Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html

Mailing List Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20220506-0006/

Third Party Advisory
Debian Security
https://www.debian.org/security/2022/dsa-5127

Third Party Advisory
Debian Security
https://www.debian.org/security/2022/dsa-5173

Third Party Advisory
Kernel patch commit
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.1
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/764f4eb6846f5475f1244767d24d25dd86528a4a
Patch

Details

CVE ID CVE-2022-28356

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2022-04-02

Modified 2025-05-05

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2022-28356?

CVE-2022-28356 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2022-28356 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-28356?

CVE-2022-28356 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-28356?

No patch is currently available for CVE-2022-28356. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2022-28356 actively exploited?

No — CVE-2022-28356 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.