CVSS 3.1 Score 5.3 of 10 (medium)


Published Dec 12, 2023
Updated: Dec 14, 2023
CWE ID 400


CVE-2023-6193 is a vulnerability that affects the quiche version 0.15.0 through 0.19.0. It allows an unauthenticated remote attacker to manipulate the connection and cause excessive resource consumption by sending PATH_CHALLENGE frames and restricting the peer's congestion window size. This leads to unbounded queuing of path validation messages, potentially impacting the storage of data in an organization's system. The issue has been addressed in quiche versions greater than 0.19.0, providing a remedy for this vulnerability. The risk score for this vulnerability is 25, with a base severity of MEDIUM according to NIST CVSS v3.1 scoring system.

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