🛡️ CVE-2023-43669
🟠 CVSS 8.0 — High ⚠️ Exploit Public NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

The Tungstenite crate before 0.20.1 for Rust allows remote attackers to cause a denial of service (minutes of CPU consumption) via an excessive length of an HTTP header in a client handshake. The length affects both how many times a parse is attempted (e.g., thousands of times) and the average amount of data for each parse attempt (e.g., millions of bytes).

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ⚠️ Yes
Source NVD
Published 2023-09-21
Updated 2026-06-15
Modified 2024-11-21

Affected Packages

Software From version Fixed in
fedora
tungstenite

References

Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2240110
Issue Tracking, Third Party Advisory https://bugzilla.suse.com/show_bug.cgi?id=1215563
Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2240110
Issue Tracking, Third Party Advisory https://bugzilla.suse.com/show_bug.cgi?id=1215563

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