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Fencer Intel
high —

GHSA-pcqq-5962-hvcw json

Denial of Service in uap-core when processing crafted User-Agent strings

published 6y ago modified last yr.

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

### 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

Patch / fix

  • rubygems user_agent_parser 2.6.0

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Affected packages

ecosystem package affected fixed in
rubygems user_agent_parser
<2.6.0
2.6.0

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.