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CVE-2022-48627

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: vt: fix memory overlapping when deleting chars in the buffer A memory overlapping copy occurs when deleting a long line.

Published Mar 2, 2024CWE-787EPSS 0.28%

Overview

CVE-2022-48627 is a medium-severity vulnerability. It was published on March 2, 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. No authentication or special privileges are required for exploitation.

Technical description

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

vt: fix memory overlapping when deleting chars in the buffer

A memory overlapping copy occurs when deleting a long line. This memory

overlapping copy can cause data corruption when scr_memcpyw is optimized

to memcpy because memcpy does not ensure its behavior if the destination

buffer overlaps with the source buffer. The line buffer is not always

broken, because the memcpy utilizes the hardware acceleration, whose

result is not deterministic.

Fix this problem by using replacing the scr_memcpyw with scr_memmovew.

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/14d2cc21ca622310babf373e3a8f0b40acfe8265Refgit.kernel.org/stable/c/39cdb68c64d84e71a4a717000b6e5de208ee60ccRefgit.kernel.org/stable/c/57964a5710252bc82fe22d9fa98c180c58c20244Refgit.kernel.org/stable/c/815be99d934e3292906536275f2b8d5131cdf52cRefgit.kernel.org/stable/c/bfee93c9a6c395f9aa62268f1cedf64999844926Refgit.kernel.org/stable/c/c8686c014b5e872ba7e334f33ca553f14446fc29Refgit.kernel.org/stable/c/14d2cc21ca622310babf373e3a8f0b40acfe8265Refgit.kernel.org/stable/c/39cdb68c64d84e71a4a717000b6e5de208ee60ccRefgit.kernel.org/stable/c/57964a5710252bc82fe22d9fa98c180c58c20244Refgit.kernel.org/stable/c/815be99d934e3292906536275f2b8d5131cdf52c

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48627?

CVE-2022-48627 is a medium-severity vulnerability. It was published on March 2, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48627?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-48627?

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-2022-48627?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48627 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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