Regular Expression Denial of Service (ReDoS) in ua-parser-js
ua-parser-js >= 0.7.14, fixed in 0.7.24, uses a regular expression which is vulnerable to denial of service. If an attacker sends a malicious User-Agent header, ua-parser-js will get stuck processing it for an extended period of time.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-27292US | high7.5 | — | ||
ua-parser-js >= 0.7.14, fixed in 0.7.24, uses a regular expression which is vulnerable to denial of service. If an attacker sends a malicious User-Agent header, ua-parser-js will g… | ||||
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references
External citations — patches, advisories, analysis.
- https://gist.github.com/b-c-ds/6941d80d6b4e694df4bc269493b7be76WEB
- https://github.com/faisalman/ua-parser-js/commit/809439e20e273ce0d25c1d04e111dcf6011eb566WEB
- https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14WEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-27292ADVISORY
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