CVE-2024-1765: quiche DoS — Fix

Description

Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client. A remote attacker could take advantage of this vulnerability by repeatedly sending an unlimited number of 1-RTT CRYPTO frames after previously completing the QUIC handshake. Exploitation was possible for the duration of the connection which could be extended by the attacker. quiche 0.19.2 and 0.20.1 are the earliest versions containing the fix for this issue.

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CVSS v3.1 Score

5.9

MEDIUM

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

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

CWE-770 CWE-770

Affected Products

Vendor	Product	Versions
cloudflare	quiche	< 0.19.2
cloudflare	quiche	All

References

Advisories & Patches

https://github.com/cloudflare/quiche/security/advisories/GHSA-78wx-jg4j-5j6g https://github.com/cloudflare/quiche/security/advisories/GHSA-78wx-jg4j-5j6g

Frequently Asked Questions

What is CVE-2024-1765? +

Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client. A remote attacker could take advantage of this vulnerability by repeatedly sending an unlimited number of 1-RTT CRYPTO frames after previously completing the QUIC handshake. Exploitation was possible for the duration of the connection which could be extended by the attacker. quiche 0.19.2 and 0.20.1 are the earliest versions containing the fix for this issue. It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2024-1765? +

CVE-2024-1765 has a CVSS v3.1 score of 5.9 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-2024-1765? +

CVE-2024-1765 affects products from cloudflare, specifically: quiche. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-1765? +

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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