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CVE-2020-36788

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: avoid a use-after-free when BO init fails nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code…

Published May 21, 2024CWE-416EPSS 0.23%

Overview

CVE-2020-36788 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

drm/nouveau: avoid a use-after-free when BO init fails

nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code

back to the caller. On failures, ttm_bo_init() invokes the provided

destructor which should de-initialize and free the memory.

Thus, when nouveau_bo_init() returns an error the gem object has already

been released and the memory freed by nouveau_bo_del_ttm().

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/548f2ff8ea5e0ce767ae3418d1ec5308990be87dRefgit.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54Refgit.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96Refgit.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87dRefgit.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54Refgit.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96

How CyberStrike helps

Frequently asked questions

What is CVE-2020-36788?

CVE-2020-36788 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2020-36788?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-36788?

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-2020-36788?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-36788 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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