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Vulnerability DatabaseCVE-2025-38574
CVE-2025-38574:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2025-38574 is a vulnerability discovered in the Linux kernel affecting the PPTP (Point-to-Point Tunneling Protocol) implementation. The vulnerability was disclosed on August 19, 2025, and involves uninitialized data access in the pptp_xmit() function (NVD).
Technical details
The vulnerability exists in the Linux kernel's PPTP implementation where the pptpxmit() function may read uninitialized data. This issue is similar to a previous vulnerability that was fixed in pppsynctxmunge() through commit aabc6596ffb3. The bug was initially discovered by syzbot and manifests in the pptpxmit function at drivers/net/ppp/pptp.c:193 (NVD).
Impact
The vulnerability could lead to information disclosure through the reading of uninitialized kernel memory, potentially exposing sensitive information (NVD).
Mitigation and workarounds
A fix has been implemented in the Linux kernel to ensure minimal skb length checking in pptpxmit(), similar to the previous fix implemented for pppsync_txmunge() (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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