CVE-2026-103415 : 詳細

CVE-2026-103415

2026-10-14
18h17 +00:00
Overflow
2026-10-16
21h17 +00:00
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CVE の説明

When a TLS 1.3 client processes a HelloRetryRequest, it copies the server's cookie into its second ClientHello without checking that the cookie fits in the outgoing packet. Both the length and the contents of that cookie come from the peer, and the write happens before certificate authentication completes, so a malicious or compromised server can overwrite memory past the caller supplied TLS packet buffer without presenting a certificate. Only the client path is affected.

CVE の情報

関連する弱点

CWE-ID 弱点名 出典
CWE-787 Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.

参考資料