CVE-2020-7663
Summary
| CVE | CVE-2020-7663 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-06-02 19:15:00 UTC |
| Updated | 2023-01-20 18:22:00 UTC |
| Description | websocket-extensions ruby module prior to 0.1.5 allows Denial of Service (DoS) via Regex Backtracking. The extension parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and some other character. This could be abused by an attacker to conduct Regex Denial Of Service (ReDoS) on a single-threaded server by providing a malicious payload with the Sec-WebSocket-Extensions header. |
Risk And Classification
Problem Types: NVD-CWE-Other
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 20.04 | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Application | Websocket-extensions Project | Websocket-extensions | All | All | All | All |
| Application | Websocket-extensions Project | Websocket-extensions | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| USN-4502-1: websocket-extensions vulnerability | Ubuntu security notices | Ubuntu | UBUNTU | usn.ubuntu.com | |
| ReDoS vulnerability in Sec-WebSocket-Extensions parser · Advisory · faye/websocket-extensions-ruby · GitHub | MISC | github.com | Third Party Advisory |
| Regular Expression Denial of Service (ReDoS) in websocket-extensions | Snyk | MISC | snyk.io | Exploit, Third Party Advisory |
| [SECURITY] [DLA 2334-1] ruby-websocket-extensions security update | MLIST | lists.debian.org | |
| ReDoS vulnerability in websocket-extensions – The If Works | MISC | blog.jcoglan.com | Third Party Advisory |
| Remove ReDoS vulnerability in the Sec-WebSocket-Extensions header parser · faye/websocket-extensions-ruby@aa156a4 · GitHub | MISC | github.com | Patch, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.