CVE-2023-49295: quic-go DoS — Fix

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.

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CVSS v3.1 Score

6.4

MEDIUM

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

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

Affected Products

Vendor	Product	Versions
quic-go_project	quic-go	< 0.37.7
quic-go_project	quic-go	0.38.0 — 0.38.2
quic-go_project	quic-go	0.39.0 — 0.39.4
quic-go_project	quic-go	All

References

Advisories & Patches

Other References

https://lists.fedoraproject.org/archives/list/[email protected]/message/G5RSHDTVMYAIGYVVFGKTMFHAZJMA3EVV/ https://lists.fedoraproject.org/archives/list/[email protected]/message/ZE7IOKXX5AATU2WR3V76X5Y3A44QAATG/ https://lists.fedoraproject.org/archives/list/[email protected]/message/G5RSHDTVMYAIGYVVFGKTMFHAZJMA3EVV/ https://lists.fedoraproject.org/archives/list/[email protected]/message/ZE7IOKXX5AATU2WR3V76X5Y3A44QAATG/

Frequently Asked Questions

What is CVE-2023-49295? +

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. It has a CVSS v3.1 base score of 6.4 (MEDIUM).

How severe is CVE-2023-49295? +

CVE-2023-49295 has a CVSS v3.1 score of 6.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-49295? +

CVE-2023-49295 affects products from quic-go_project, specifically: quic-go. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-49295? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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