Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2021-47120

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: fix NULL-deref on disconnect Commit 9d7b18668956 ("HID: magicmouse: add support for Apple Magic Trackpad 2") a…

Published Mar 15, 2024CWE-476EPSS 0.24%

Overview

CVE-2021-47120 is a medium-severity vulnerability. It was published on March 15, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, 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:

HID: magicmouse: fix NULL-deref on disconnect

Commit 9d7b18668956 ("HID: magicmouse: add support for Apple Magic

Trackpad 2") added a sanity check for an Apple trackpad but returned

success instead of -ENODEV when the check failed. This means that the

remove callback will dereference the never-initialised driver data

pointer when the driver is later unbound (e.g. on USB disconnect).

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/368c5d45a87e1bcc7f1e98e0c255c37b7b12c5d6Refgit.kernel.org/stable/c/4b4f6cecca446abcb686c6e6c451d4f1ec1a7497Refgit.kernel.org/stable/c/9cf27473f21913a3eaf4702dd2a25415afd5f33fRefgit.kernel.org/stable/c/b5d013c4c76b276890135b5d32803c4c63924b77Refgit.kernel.org/stable/c/368c5d45a87e1bcc7f1e98e0c255c37b7b12c5d6Refgit.kernel.org/stable/c/4b4f6cecca446abcb686c6e6c451d4f1ec1a7497Refgit.kernel.org/stable/c/9cf27473f21913a3eaf4702dd2a25415afd5f33fRefgit.kernel.org/stable/c/b5d013c4c76b276890135b5d32803c4c63924b77

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47120?

CVE-2021-47120 is a medium-severity vulnerability. It was published on March 15, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-47120?

This vulnerability has a CVSS 3.1 base score of 5.5, 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-2021-47120?

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-2021-47120?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47120 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 2021

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999