uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent header in an HTTP(S) request to maliciously crafted long strings. This has been patched in uap-core 0.7.3.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| uap-core(npm) | 0 | 0.7.3 | N/A |
| user_agent_parser(RubyGems) | 0 | 2.6.0 | N/A |
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