Vulnerability in Snapview Tungstenite
CVE-2023-43669
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.021 (80.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.021 · change: +0.004
Affected products
- Snapview Tungstenite
- Fedoraproject Fedora — versions 37, 38, 39
References
- github.com/snapview/tungstenite-rs/issues/376 (Exploit, Issue Tracking)
- cwe.mitre.org/data/definitions/407.html (Technical Description)
- crates.io/crates/tungstenite/versions (Release Notes)
- github.com/snapview/tungstenite-rs/commit/8b3ecd3cc0008145ab4bc8d0657c39d09db8c… (Patch)
- github.com/advisories/GHSA-9mcr-873m-xcxp (Third Party Advisory)
- github.com/github/advisory-database/pull/2752 (Patch)
- bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- security-tracker.debian.org/tracker/CVE-2023-43669 (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-43669?
- CVE-2023-43669 is a high-severity vulnerability in Snapview Tungstenite. CVSS score: 7.5/10. Published 2023-09-21.
- How severe is CVE-2023-43669?
- High severity. CVSS v3 base score is 7.5 out of 10.