Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2024-36883

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net: fix out-of-bounds access in ops_init net_alloc_generic is called by net_alloc, which is called without any locking.

Published May 30, 2024CWE-125EPSS 0.31%

Overview

CVE-2024-36883 is a high-severity vulnerability. It was published on May 30, 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:

net: fix out-of-bounds access in ops_init

net_alloc_generic is called by net_alloc, which is called without any

locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It

is read twice, first to allocate an array, then to set s.len, which is

later used to limit the bounds of the array access.

It is possible that the array is allocated and another thread is

registering a new pernet ops, increments max_gen_ptrs, which is then used

to set s.len with a larger than allocated length for the variable array.

Fix it by reading max_gen_ptrs only once in net_alloc_generic. If

max_gen_ptrs is later incremented, it will be caught in net_assign_generic.

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/0c3248bc708a7797be573214065cf908ff1f54c7Refgit.kernel.org/stable/c/2d60ff5874aefd006717ca5e22ac1e25eac29c42Refgit.kernel.org/stable/c/3cdc34d76c4f777579e28ad373979d36c030cfd3Refgit.kernel.org/stable/c/7b0e64583eab8c1d896b47e5dd0bf2e7d86ec41fRefgit.kernel.org/stable/c/9518b79bfd2fbf99fa9b7e8e36bcb1825e7ba030Refgit.kernel.org/stable/c/a26ff37e624d12e28077e5b24d2b264f62764ad6Refgit.kernel.org/stable/c/b6dbfd5bcc267a95a0bf1bf96af46243f96ec6cdRefgit.kernel.org/stable/c/f4f94587e1bf87cb40ec33955a9d90148dd026abRefgit.kernel.org/stable/c/0c3248bc708a7797be573214065cf908ff1f54c7Refgit.kernel.org/stable/c/2d60ff5874aefd006717ca5e22ac1e25eac29c42

How CyberStrike helps

Frequently asked questions

What is CVE-2024-36883?

CVE-2024-36883 is a high-severity vulnerability. It was published on May 30, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-36883?

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-2024-36883?

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-2024-36883?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-36883 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.

Related HIGH CVEs from 2024

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999