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CVE-2021-47288

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf() Fix an 11-year old bug in ngene_command_config_free_buf(…

Published May 21, 2024CWE-125EPSS 0.23%

Overview

CVE-2021-47288 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, 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:

media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()

Fix an 11-year old bug in ngene_command_config_free_buf() while

addressing the following warnings caught with -Warray-bounds:

arch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]

arch/x86/include/asm/string_32.h:182:25: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]

The problem is that the original code is trying to copy 6 bytes of

data into a one-byte size member _config_ of the wrong structue

FW_CONFIGURE_BUFFERS, in a single call to memcpy(). This causes a

legitimate compiler warning because memcpy() overruns the length

of &com.cmd.ConfigureBuffers.co

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/4487b968e5eacd02c493303dc2b61150bb7fe4b2Refgit.kernel.org/stable/c/8d4abca95ecc82fc8c41912fa0085281f19cc29fRefgit.kernel.org/stable/c/b9a178f189bb6d75293573e181928735f5e3e070Refgit.kernel.org/stable/c/c6ddeb63dd543b5474b0217c4e47538b7ffd7686Refgit.kernel.org/stable/c/e617fa62f6cf859a7b042cdd6c73af905ff8fca3Refgit.kernel.org/stable/c/e818f2ff648581a6c553ae2bebc5dcef9a8bb90cRefgit.kernel.org/stable/c/e991457afdcb5f4dbc5bc9d79eaf775be33e7092Refgit.kernel.org/stable/c/ec731c6ef564ee6fc101fc5d73e3a3a953d09a00Refgit.kernel.org/stable/c/4487b968e5eacd02c493303dc2b61150bb7fe4b2Refgit.kernel.org/stable/c/8d4abca95ecc82fc8c41912fa0085281f19cc29f

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47288?

CVE-2021-47288 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2021-47288?

This vulnerability has a CVSS 3.1 base score of 7.1, 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-2021-47288?

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-2021-47288?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47288 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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