CVE-2020-7663

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.

Database specific

{
    "unresolved_ranges": [
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "fixed": "0.1.5"
                }
            ],
            "cpe": "cpe:2.3:a:websocket-extensions_project:websocket-extensions:*:*:*:*:*:ruby:*:*"
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "16.04"
                }
            ],
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*"
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "18.04"
                }
            ],
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "20.04"
                }
            ],
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
        }
    ]
}

References

Affected packages

Git / github.com/faye/websocket-extensions-ruby

Affected ranges

Type

GIT

Repo

https://github.com/faye/websocket-extensions-ruby

Events

Introduced

Fixed

aa156a439da681361ed6f53f1a8131892418838b

Database specific

{
    "source": "REFERENCES"
}

Affected versions

0.*

0.1.0

0.1.1

0.1.2

0.1.3

0.1.4

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-7663.json"