Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2022-49286

4.7 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: tpm: use try_get_ops() in tpm-space.c As part of the series conversion to remove nested TPM operations: https://lore.kernel.or…

Published Feb 26, 2025CWE-476EPSS 0.24%

Overview

CVE-2022-49286 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

tpm: use try_get_ops() in tpm-space.c

As part of the series conversion to remove nested TPM operations:

https://lore.kernel.org/all/[email protected]/

exposure of the chip->tpm_mutex was removed from much of the upper

level code. In this conversion, tpm2_del_space() was missed. This

didn't matter much because it's usually called closely after a

converted operation, so there's only a very tiny race window where the

chip can be removed before the space flushing is done which causes a

NULL deref on the mutex. However, there are reports of this window

being hit in practice, so fix this by converting tpm2_del_space() to

use tpm_try_get_ops(), which performs all the teardown checks before

acquring the mutex.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/476ddd23f818fb94cf86fb5617f3bb9a7c92113dRefgit.kernel.org/stable/c/5b1d2561a03e534064b51c50c774657833d3d2cfRefgit.kernel.org/stable/c/95193d12f10a8a088843b25e0f5fe1d83ec6b079Refgit.kernel.org/stable/c/ba84f9a48366dcc3cdef978599433efe101dd5bdRefgit.kernel.org/stable/c/eda1662cce964c8a65bb86321f8d9cfa6e9ceaabRefgit.kernel.org/stable/c/fb5abce6b2bb5cb3d628aaa63fa821da8c4600f9

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49286?

CVE-2022-49286 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2022-49286?

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49286?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49286?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49286 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2022

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999