CVE-2025-65562— free5GC 安全漏洞

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The free5GC UPF suffers from a lack of bounds checking on the SEID when processing PFCP Session Deletion Requests. An unauthenticated remote attacker can send a request with a very large SEID (e.g., 0xFFFFFFFFFFFFFFFF) that causes an integer conversion/underflow in LocalNode.DeleteSess() / LocalNode.Sess() when a uint64 SEID is converted to int and used in index arithmetic. This leads to a negative index into n.sess and a Go runtime panic, resulting in a denial of service (UPF crash). The issue has been reproduced on free5GC v4.1.0 with crashes observed in the session lookup/deletion path in internal/pfcp/node.go; other versions may also be affected. No authentication is required.

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free5GC 安全漏洞

free5GC是free5GC开源的一个第 5 代 (5G) 移动核心网络的开源项目。 free5GC存在安全漏洞，该漏洞源于处理PFCP会话删除请求时缺乏边界检查，可能导致整数下溢和拒绝服务。

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