Vulnerability Details CVE-2023-46239
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 61.5%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2023-46239
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cpe:2.3:a:quic-go_project:quic-go:0.37.0
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cpe:2.3:a:quic-go_project:quic-go:0.37.1
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cpe:2.3:a:quic-go_project:quic-go:0.37.2