🛡️ CVE-2023-49295
🟡 CVSS 6.4 — Medium ✅ No Known Exploit CWE-400 NVD
6.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

quic-go is an implementation of the QUIC protocol (RFC 9000, RFC 9001, RFC 9002) in Go. An attacker can cause its peer to run out of memory sending a large number of PATH_CHALLENGE frames. The receiver is supposed to respond to each PATH_CHALLENGE frame with a PATH_RESPONSE frame. The attacker can prevent the receiver from sending out (the vast majority of) these PATH_RESPONSE frames by collapsing the peers congestion window (by selectively acknowledging received packets) and by manipulating the peer's RTT estimate. This vulnerability has been patched in versions 0.37.7, 0.38.2 and 0.39.4.

Details

Severity Medium
CVSS Score 6.4
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
CWE CWE-400
Public Exploit ✅ No
Source NVD
Published 2024-01-10
Updated 2026-06-15
Modified 2026-02-04

Affected Packages

Software From version Fixed in
github.com/quic-go/quic-go — —
quic-go — —

References

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