{"id":"CVE-2023-46239","state":"PUBLISHED","title":"quic-go vulnerable to pointer dereference that can lead to panic","description":"quic-go is an implementation of the QUIC protocol in Go. Starting in version 0.37.0 and prior to version 0.37.3, by serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space. An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets. Version 0.37.3 contains a patch. Versions before 0.37.0 are not affected.","publishedAt":"2023-10-31T15:02:03.413Z","updatedAt":"2024-09-05T17:37:20.453Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["quic-go quic-go"],"affected":[{"vendor":"quic-go","product":"quic-go","versions":[{"version":">= 0.37.0, < 0.37.3","status":"affected"}]}],"references":["https://github.com/quic-go/quic-go/security/advisories/GHSA-3q6m-v84f-6p9h","https://github.com/quic-go/quic-go/commit/b6a4725b60f1fe04e8f1ddcc3114e290fcea1617","https://github.com/quic-go/quic-go/releases/tag/v0.37.3"],"weaknesses":["CWE-248"],"ingestedAt":"2026-10-29T20:06:24.729Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/46xxx/CVE-2023-46239.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-46239","state":"PUBLISHED","datePublished":"2023-10-31T15:02:03.413Z","dateUpdated":"2024-09-05T17:37:20.453Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2023-10-19T20:34:00.947Z"},"containers":{"cna":{"title":"quic-go vulnerable to pointer dereference that can lead to panic","descriptions":[{"lang":"en","value":"quic-go is an implementation of the QUIC protocol in Go. Starting in version 0.37.0 and prior to version 0.37.3, by serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space. An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets. Version 0.37.3 contains a patch. 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