Wiz
Vulnerability DatabaseCVE-2024-57901

CVE-2024-57901: 
Linux Kernel vulnerability analysis and mitigation

Overview

CVE-2024-57901 is a vulnerability in the Linux kernel's afpacket subsystem, specifically in the vlangetprotocoldgram() function. The vulnerability was discovered by syzbot and disclosed on January 15, 2025. The issue affects multiple versions of the Linux kernel, including versions from 4.19.320 to 6.13-rc5 (NVD).

Technical details

The vulnerability stems from a bug in the vlangetprotocoldgram() function where it failed to handle the MSGPEEK case correctly. The function was modifying the skb (socket buffer) data structure without proper consideration for concurrent access from multiple CPUs. The issue could trigger a kernel panic with the error 'skbunderpanic' when accessing VLAN-tagged packets. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (MEDIUM) with vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (NVD).

Impact

When exploited, this vulnerability can cause a kernel crash (denial of service) on affected systems. The issue specifically manifests when processing VLAN-tagged packets with the MSG_PEEK flag, potentially affecting network packet processing capabilities (Kernel Patch).

Mitigation and workarounds

The vulnerability has been fixed in multiple Linux kernel versions. Debian has released security updates addressing this issue in version 5.10.234-1 for Debian 11 (bullseye) and version 6.1.128-1~deb11u1 for the linux-6.1 package. The fix involves reworking the vlangetprotocol_dgram() function to avoid modifying the skb structure and adding proper const qualifiers (Debian LTS, Debian LTS).

Additional resources

Source: This report was generated using AI

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues

Cloud threat landscape

Cloud threat landscape

A comprehensive threat intelligence database of cloud security incidents, actors, tools and techniques

PEACH

PEACH

A step-by-step framework for modeling and improving SaaS and PaaS tenant isolation

Get a personalized demo

Ready to see Wiz in action?

“Best User Experience I have ever seen, provides full visibility to cloud workloads.”
David EstlickCISO
“Wiz provides a single pane of glass to see what is going on in our cloud environments.”
Adam FletcherChief Security Officer
“We know that if Wiz identifies something as critical, it actually is.”
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo