CVE-2023-43669

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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).

El Tungstenite crate anterior a la versión 0.20.1 para Rust permite a atacantes remotos provocar una denegación del servicio (de minutos de consumo de la CPU) a través de una longitud excesiva de un encabezado HTTP en el handshake del cliente. La longitud afecta tanto a cuántas veces se intenta un análisis (por ejemplo, miles de veces) y la cantidad promedio de datos para cada intento de análisis (por ejemplo, millones de bytes).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-09-21 CVE Reserved
2023-09-21 CVE Published
2024-08-02 CVE Updated
2024-08-02 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (12)

URL	Tag	Source
https://bugzilla.redhat.com/show_bug.cgi?id=2240110	Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1215563	Issue Tracking
https://crates.io/crates/tungstenite/versions	Release Notes
https://cwe.mitre.org/data/definitions/407.html	Technical Description
https://github.com/advisories/GHSA-9mcr-873m-xcxp	Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2023-43669	Third Party Advisory

URL	Date	SRC
https://github.com/snapview/tungstenite-rs/issues/376	2024-08-02

URL	Date	SRC
https://github.com/github/advisory-database/pull/2752	2024-02-16
https://github.com/snapview/tungstenite-rs/commit/8b3ecd3cc0008145ab4bc8d0657c39d09db8c7e2	2024-02-16

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM	2024-02-16
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/THK6G6CD4VW6RCROWUV2C4HSINKK3XAK	2024-02-16
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TT7SF6CQ5VHAGFLWNXY64NFSW4WIWE7D	2024-02-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Snapview Search vendor "Snapview"		Tungstenite Search vendor "Snapview" for product "Tungstenite"				<= 0.20.0 Search vendor "Snapview" for product "Tungstenite" and version " <= 0.20.0"		rust		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				37 Search vendor "Fedoraproject" for product "Fedora" and version "37"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				38 Search vendor "Fedoraproject" for product "Fedora" and version "38"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				39 Search vendor "Fedoraproject" for product "Fedora" and version "39"		-		Affected