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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-50142 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when sel.family is unset This expands the validation introduced in commit 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.") syzbot created an SA with usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET Because of the AF_UNSPEC selector, verify_newsa_info doesn't put limits on prefixlen_{s,d}. But then copy_from_user_state sets x->sel.family to usersa.family (AF_INET). Do the same conversion in verify_newsa_info before validating prefixlen_{s,d}, since that's how prefixlen is going to be used later on.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71 Patch 
https://git.kernel.org/stable/c/3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 Patch 
https://git.kernel.org/stable/c/401ad99a5ae7180dd9449eac104cb755f442e7f3 Patch 
https://git.kernel.org/stable/c/7d9868180bd1e4cf37e7c5067362658971162366 Patch 
https://git.kernel.org/stable/c/8df5cd51fd70c33aa1776e5cbcd82b0a86649d73 Patch 
https://git.kernel.org/stable/c/bce1afaa212ec380bf971614f70909a27882b862 Patch 
https://git.kernel.org/stable/c/e68dd80ba498265d2266b12dc3459164f4ff0c4a Patch 
https://git.kernel.org/stable/c/f31398570acf0f0804c644006f7bfa9067106b0a Patch 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-50142
NVD Published Date:
11/07/2024
NVD Last Modified:
11/22/2024
Source:
kernel.org