Input validation error in Tungstenite



| Updated: 2025-04-18
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-43669
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Tungstenite
Other
Vendor Snapview

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Input validation error

EUVDB-ID: #VU107614

Risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-43669

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to excessive length of an HTTP header in a client handshake. A remote attacker can cause a denial of service (minutes of CPU consumption) via an excessive length of an HTTP header in a client handshake.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Tungstenite: 0.1.0 - 0.20.0

CPE2.3 External links

https://github.com/snapview/tungstenite-rs/issues/376
https://cwe.mitre.org/data/definitions/407.html
https://crates.io/crates/tungstenite/versions
https://github.com/snapview/tungstenite-rs/commit/8b3ecd3cc0008145ab4bc8d0657c39d09db8c7e2
https://github.com/advisories/GHSA-9mcr-873m-xcxp
https://bugzilla.suse.com/show_bug.cgi?id=1215563
https://github.com/github/advisory-database/pull/2752
https://bugzilla.redhat.com/show_bug.cgi?id=2240110
https://security-tracker.debian.org/tracker/CVE-2023-43669
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/THK6G6CD4VW6RCROWUV2C4HSINKK3XAK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TT7SF6CQ5VHAGFLWNXY64NFSW4WIWE7D/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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