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CVE-2021-47478

9.1 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read dat…

Published May 22, 2024CWE-125EPSS 0.69%

Overview

CVE-2021-47478 is a critical-severity vulnerability. It was published on May 22, 2024 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

isofs: Fix out of bound access for corrupted isofs image

When isofs image is suitably corrupted isofs_read_inode() can read data

beyond the end of buffer. Sanity-check the directory entry length before

using it.

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/156ce5bb6cc43a80a743810199defb1dc3f55b7fRefgit.kernel.org/stable/c/6e80e9314f8bb52d9eabe1907698718ff01120f5Refgit.kernel.org/stable/c/86d4aedcbc69c0f84551fb70f953c24e396de2d7Refgit.kernel.org/stable/c/9ec33a9b8790c212cc926a88c5e2105f97f3f57eRefgit.kernel.org/stable/c/afbd40f425227e661d991757e11cc4db024e761fRefgit.kernel.org/stable/c/b0ddff8d68f2e43857a84dce54c3deab181c8ae1Refgit.kernel.org/stable/c/b2fa1f52d22c5455217b294629346ad23a744945Refgit.kernel.org/stable/c/e7fb722586a2936b37bdff096c095c30ca06404dRefgit.kernel.org/stable/c/e96a1866b40570b5950cda8602c2819189c62a48Refgit.kernel.org/stable/c/156ce5bb6cc43a80a743810199defb1dc3f55b7f

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47478?

CVE-2021-47478 is a critical-severity vulnerability. It was published on May 22, 2024 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2021-47478?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-47478?

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-2021-47478?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47478 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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