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CVE-2024-27406

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: lib/Kconfig.debug: TEST_IOV_ITER depends on MMU Trying to run the iov_iter unit test on a nommu system such as the qemu kc705-n…

Published May 17, 2024CWE-476EPSS 0.24%

Overview

CVE-2024-27406 is a medium-severity vulnerability. It was published on May 17, 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:

lib/Kconfig.debug: TEST_IOV_ITER depends on MMU

Trying to run the iov_iter unit test on a nommu system such as the qemu

kc705-nommu emulation results in a crash.

KTAP version 1

# Subtest: iov_iter

# module: kunit_iov_iter

1..9

BUG: failure at mm/nommu.c:318/vmap()!

Kernel panic - not syncing: BUG!

The test calls vmap() directly, but vmap() is not supported on nommu

systems, causing the crash. TEST_IOV_ITER therefore needs to depend on

MMU.

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/1eb1e984379e2da04361763f66eec90dd75cf63eRefgit.kernel.org/stable/c/9e6e541b97762d5b1143070067f7c68f39a408f8Refgit.kernel.org/stable/c/e6316749d603fe9c4c91f6ec3694e06e4de632a3Refgit.kernel.org/stable/c/1eb1e984379e2da04361763f66eec90dd75cf63eRefgit.kernel.org/stable/c/9e6e541b97762d5b1143070067f7c68f39a408f8Refgit.kernel.org/stable/c/e6316749d603fe9c4c91f6ec3694e06e4de632a3

How CyberStrike helps

Frequently asked questions

What is CVE-2024-27406?

CVE-2024-27406 is a medium-severity vulnerability. It was published on May 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-27406?

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-2024-27406?

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-2024-27406?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-27406 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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