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CVE-2023-43669 Details

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).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=2240110	CVE	Issue TrackingThird Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1215563	CVE	Issue TrackingThird Party Advisory
https://crates.io/crates/tungstenite/versions	CVE	Release Notes
https://cwe.mitre.org/data/definitions/407.html	CVE	Technical Description
https://github.com/advisories/GHSA-9mcr-873m-xcxp	CVE	Third Party Advisory
https://github.com/github/advisory-database/pull/2752	CVE	Patch
https://github.com/snapview/tungstenite-rs/commit/8b3ecd3cc0008145ab4bc8d0657c39d09db8c7e2	CVE	Patch
https://github.com/snapview/tungstenite-rs/issues/376	CVE	ExploitIssue Tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM/	CVE	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/THK6G6CD4VW6RCROWUV2C4HSINKK3XAK/	CVE	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TT7SF6CQ5VHAGFLWNXY64NFSW4WIWE7D/	CVE	Mailing ListThird Party Advisory
https://security-tracker.debian.org/tracker/CVE-2023-43669	CVE	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2240110	[email protected]	Issue TrackingThird Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1215563	[email protected]	Issue TrackingThird Party Advisory
https://crates.io/crates/tungstenite/versions	[email protected]	Release Notes
https://cwe.mitre.org/data/definitions/407.html	[email protected]	Technical Description
https://github.com/advisories/GHSA-9mcr-873m-xcxp	[email protected]	Third Party Advisory
https://github.com/github/advisory-database/pull/2752	[email protected]	Patch
https://github.com/snapview/tungstenite-rs/commit/8b3ecd3cc0008145ab4bc8d0657c39d09db8c7e2	[email protected]	Patch
https://github.com/snapview/tungstenite-rs/issues/376	[email protected]	ExploitIssue Tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM/	[email protected]	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/THK6G6CD4VW6RCROWUV2C4HSINKK3XAK/	[email protected]	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TT7SF6CQ5VHAGFLWNXY64NFSW4WIWE7D/	[email protected]	Mailing ListThird Party Advisory
https://security-tracker.debian.org/tracker/CVE-2023-43669	[email protected]	Third Party Advisory

see all 24 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]

Affected Products

Product	Versions
snapview tungstenite	<= 0.20.0
CPE cpe:2.3:a:snapview:tungstenite::::::rust::* Remediation No remediation found in references.
fedoraproject fedora	37 38 39
CPE cpe:2.3:o:fedoraproject:fedora:37:::::::* cpe:2.3:o:fedoraproject:fedora:38:::::::* cpe:2.3:o:fedoraproject:fedora:39:::::::* Remediation No remediation found in references.

Change History

10 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 16, 2024	Modified Analysis	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Oct 3, 2023	CVE Modified	[email protected]
Oct 3, 2023	CVE Modified	[email protected]
Sep 29, 2023	CVE Modified	[email protected]
Sep 25, 2023	Initial Analysis	[email protected]
Sep 23, 2023	CVE Modified	[email protected]