CVE-2021-27292
HIGH7.5EPSS 1.4%Regular Expression Denial of Service (ReDoS) in ua-parser-js
Published: 5/6/2021Modified: 11/8/2023
Also known as:GHSA-78cj-fxph-m83p
Description
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.
Affected packages (2)
- Debian/node-ua-parser-jsfrom 0, < 0.7.24+ds-1
- npm/ua-parser-js>= 0.7.14, < 0.7.24
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2021-27292
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-27292
- WEBhttps://gist.github.com/b-c-ds/6941d80d6b4e694df4bc269493b7be76
- WEBhttps://github.com/faisalman/ua-parser-js/commit/809439e20e273ce0d25c1d04e111dcf6011eb566
- WEBhttps://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14