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CVE-2024-47723

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: jfs: fix out-of-bounds in dbNextAG() and diAlloc() In dbNextAG() , there is no check for the case where bmp->db_numag is greate…

Published Oct 21, 2024CWE-125EPSS 0.29%

Overview

CVE-2024-47723 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, 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:

jfs: fix out-of-bounds in dbNextAG() and diAlloc()

In dbNextAG() , there is no check for the case where bmp->db_numag is

greater or same than MAXAG due to a polluted image, which causes an

out-of-bounds. Therefore, a bounds check should be added in dbMount().

And in dbNextAG(), a check for the case where agpref is greater than

bmp->db_numag should be added, so an out-of-bounds exception should be

prevented.

Additionally, a check for the case where agno is greater or same than

MAXAG should be added in diAlloc() to prevent out-of-bounds.

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/0338e66cba272351ca9d7d03f3628e390e70963bRefgit.kernel.org/stable/c/128d5cfdcf844cb690c9295a3a1c1114c21fc15aRefgit.kernel.org/stable/c/5ad6284c8d433f8a213111c5c44ead4d9705b622Refgit.kernel.org/stable/c/6ce8b6ab44a8b5918c0ee373d4ad19d19017931bRefgit.kernel.org/stable/c/96855f40e152989c9e7c20c4691ace5581098accRefgit.kernel.org/stable/c/c1ba4b8ca799ff1d99d01f37d7ccb7d5ba5533d2Refgit.kernel.org/stable/c/d1017d2a0f3f16dc1db5120e7ddbe7c6680425b0Refgit.kernel.org/stable/c/e63866a475562810500ea7f784099bfe341e761aRefgit.kernel.org/stable/c/ead82533278502428883085a787d5a00f15e5eb9Reflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-47723?

CVE-2024-47723 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-47723?

This vulnerability has a CVSS 3.1 base score of 7.8, 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-2024-47723?

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-2024-47723?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-47723 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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