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CVE-2020-35508

4.5 · MEDIUM

A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers.

Published Mar 26, 2021CWE-665EPSS 0.22%

Overview

CVE-2020-35508 is a medium-severity vulnerability. It was published on March 26, 2021 and has a CVSS 3.1 base score of 4.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.

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

Refbugzilla.redhat.com/show_bug.cgi?id=1902724GitHubgithub.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948Refsecurity.netapp.com/advisory/ntap-20210513-0006/Refbugzilla.redhat.com/show_bug.cgi?id=1902724GitHubgithub.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948Refsecurity.netapp.com/advisory/ntap-20210513-0006/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-35508?

CVE-2020-35508 is a medium-severity vulnerability. It was published on March 26, 2021 and has a CVSS 3.1 base score of 4.5 (MEDIUM).

How severe is CVE-2020-35508?

This vulnerability has a CVSS 3.1 base score of 4.5, 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-2020-35508?

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-2020-35508?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-35508 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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