Advisories for Gem/User_agent_parser package

Impact 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. Patches Please update uap-ruby to >= v2.6.0 For more information https://github.com/ua-parser/uap-core/security/advisories/GHSA-cmcx-xhr8-3w9p Reported in uap-core by Ben Caller @bcaller

uap-core 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

The programming library UA-Parser uses regular expressions to identify user agent strings. The complexity of the regular expressions is such that an attacker can craft special patterns that keep the server busy for a long time. By sending many requests in short order, an attacker can exhaust the amount of processing power available.