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Vulnerability record · CVE-2023-49295 · published 10 January 2024

CVE-2023-49295: Quic-go project quic-go uncontrolled resource consumption vulnerability

Quic Go Project · Quic Go

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.

6.5 CVSS 3.1 Medium EPSS 1.2% · top 33.0% CWE-400 · Uncontrolled resource consumption
6.5CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/quic-go/quic-go/commit/17fc98c2d81dbe685c19702dc694a9d606ac56dc Patch
https://github.com/quic-go/quic-go/commit/21609ddfeff93668c7625a85eb09f1541fdad965 Patch
https://github.com/quic-go/quic-go/commit/3a9c18bcd27a01c551ac9bf8bd2b4bded77c189a Patch
https://github.com/quic-go/quic-go/commit/554d543b50b917369fb1394cc5396d928166cf49 Patch
https://github.com/quic-go/quic-go/commit/6cc3d58935426191296171a6c0d1ee965e10534e Patch
https://github.com/quic-go/quic-go/commit/9aaefe19fc3dc8c8917cc87e6128bb56d9e9e6cc Patch
https://github.com/quic-go/quic-go/commit/a0ffa757499913f7be69aa78f573a6aee3430ae4 Patch
https://github.com/quic-go/quic-go/commit/d7aa627ebde91cf799ada2a07443faa9b1e5abb8 Patch
https://github.com/quic-go/quic-go/security/advisories/GHSA-ppxx-5m9h-6vxf Vendor Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/G5RSHDTVMYAIGYVVFGKTMFHAZ
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZE7IOKXX5AATU2WR3V76X5Y3A
https://github.com/quic-go/quic-go/commit/17fc98c2d81dbe685c19702dc694a9d606ac56dc Patch
https://github.com/quic-go/quic-go/commit/21609ddfeff93668c7625a85eb09f1541fdad965 Patch
https://github.com/quic-go/quic-go/commit/3a9c18bcd27a01c551ac9bf8bd2b4bded77c189a Patch
https://github.com/quic-go/quic-go/commit/554d543b50b917369fb1394cc5396d928166cf49 Patch
https://github.com/quic-go/quic-go/commit/6cc3d58935426191296171a6c0d1ee965e10534e Patch
https://github.com/quic-go/quic-go/commit/9aaefe19fc3dc8c8917cc87e6128bb56d9e9e6cc Patch
https://github.com/quic-go/quic-go/commit/a0ffa757499913f7be69aa78f573a6aee3430ae4 Patch
https://github.com/quic-go/quic-go/commit/d7aa627ebde91cf799ada2a07443faa9b1e5abb8 Patch
https://github.com/quic-go/quic-go/security/advisories/GHSA-ppxx-5m9h-6vxf Vendor Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/G5RSHDTVMYAIGYVVFGKTMFHAZ
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZE7IOKXX5AATU2WR3V76X5Y3A

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Source: NIST National Vulnerability Database (record CVE-2023-49295), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.