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CVE-2022-48747

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: block: Fix wrong offset in bio_truncate() bio_truncate() clears the buffer outside of last block of bdev, however current bio_t…

Published Jun 20, 2024CWE-908EPSS 0.92%

Overview

CVE-2022-48747 is a high-severity vulnerability. It was published on June 20, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, 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:

block: Fix wrong offset in bio_truncate()

bio_truncate() clears the buffer outside of last block of bdev, however

current bio_truncate() is using the wrong offset of page. So it can

return the uninitialized data.

This happened when both of truncated/corrupted FS and userspace (via

bdev) are trying to read the last of bdev.

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/3ee859e384d453d6ac68bfd5971f630d9fa46ad3Refgit.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8Refgit.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6aeRefgit.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82Refgit.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248bRefgit.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3Refgit.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8Refgit.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6aeRefgit.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82Refgit.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48747?

CVE-2022-48747 is a high-severity vulnerability. It was published on June 20, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2022-48747?

This vulnerability has a CVSS 3.1 base score of 7.5, 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-2022-48747?

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-2022-48747?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48747 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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