vulnerability
FreeBSD: VID-CA8327F7-A5A5-11EA-A860-08002728F74C (CVE-2020-7663): websocket-extensions -- ReDoS vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Jun 2, 2020 | Jun 4, 2020 | Oct 20, 2020 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Jun 2, 2020
Added
Jun 4, 2020
Modified
Oct 20, 2020
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.
Solution
freebsd-upgrade-package-rubygem-websocket-extensions
References
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