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CVE-2022-0185

8.4 · HIGHActively Exploited

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length.

Published Feb 11, 2022CWE-190EPSS 25.15%

Overview

CVE-2022-0185 is a high-severity vulnerability. It was published on February 11, 2022 and has a CVSS 3.1 base score of 8.4 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

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/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2GitHubgithub.com/Crusaders-of-Rust/CVE-2022-0185Refsecurity.netapp.com/advisory/ntap-20220225-0003/Refwww.openwall.com/lists/oss-security/2022/01/18/7Refwww.willsroot.io/2022/01/cve-2022-0185.htmlRefgit.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2GitHubgithub.com/Crusaders-of-Rust/CVE-2022-0185Refsecurity.netapp.com/advisory/ntap-20220225-0003/Refwww.openwall.com/lists/oss-security/2022/01/18/7Refwww.willsroot.io/2022/01/cve-2022-0185.html

How CyberStrike helps

Frequently asked questions

What is CVE-2022-0185?

CVE-2022-0185 is a high-severity vulnerability. It was published on February 11, 2022 and has a CVSS 3.1 base score of 8.4 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2022-0185?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-0185?

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-2022-0185?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-0185 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.

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