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CVE-2024-26936

8.2 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate request buffer size in smb2_allocate_rsp_buf() The response buffer should be allocated in smb2_allocate_rsp_buf…

Published May 1, 2024CWE-120EPSS 0.60%

Overview

CVE-2024-26936 is a high-severity vulnerability. It was published on May 1, 2024 and has a CVSS 3.1 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. 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:

ksmbd: validate request buffer size in smb2_allocate_rsp_buf()

The response buffer should be allocated in smb2_allocate_rsp_buf

before validating request. But the fields in payload as well as smb2 header

is used in smb2_allocate_rsp_buf(). This patch add simple buffer size

validation to avoid potencial out-of-bounds in request buffer.

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/17cf0c2794bdb6f39671265aa18aea5c22ee8c4aRefgit.kernel.org/stable/c/21ff9d7d223c5c19cb4334009e4c0c83a2f4d674Refgit.kernel.org/stable/c/2c27a64a2bc47d9bfc7c3cf8be14be53b1ee7cb6Refgit.kernel.org/stable/c/5c20b242d4fed73a93591e48bfd9772e2322fb11Refgit.kernel.org/stable/c/8f3d0bf1d0c62b539d54c5b9108a845cff619b99Refgit.kernel.org/stable/c/17cf0c2794bdb6f39671265aa18aea5c22ee8c4aRefgit.kernel.org/stable/c/21ff9d7d223c5c19cb4334009e4c0c83a2f4d674Refgit.kernel.org/stable/c/2c27a64a2bc47d9bfc7c3cf8be14be53b1ee7cb6Refgit.kernel.org/stable/c/5c20b242d4fed73a93591e48bfd9772e2322fb11Refgit.kernel.org/stable/c/8f3d0bf1d0c62b539d54c5b9108a845cff619b99

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26936?

CVE-2024-26936 is a high-severity vulnerability. It was published on May 1, 2024 and has a CVSS 3.1 base score of 8.2 (HIGH).

How severe is CVE-2024-26936?

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-26936?

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-2024-26936?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26936 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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