CVE-2024-50142 Vulnerability Details

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CVE-2024-50142 Metadata Quick Info

CVE Published: 07/11/2024 | CVE Updated: 19/11/2024 | CVE Year: 2024
Source: Linux | Vendor: Linux | Product: Linux
Status : PUBLISHED

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CVE-2024-50142 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

CVSS Version: 3.1 | Base Score: n/a
Vector: n/a

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Weakness Enumeration (CWE)

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Source: Linux

Common Attack Pattern Enumeration and Classification (CAPEC)

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Source: NVD (National Vulnerability Database).