Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeys_as_arrayref in decode_hv. With allow_barekey, which relaxed enables, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes, so a repeated key escapes the duplicate-key check and replaces the earlier value. From 4.41, under dupkeys_as_arrayref, a bare repeat replaces the array that collects a key's values with a plain value, and the next quoted repeat pushes onto that value as if it were an array. A JSON integer there is dereferenced as a pointer. Untrusted JSON decoded with relaxed and dupkeys_as_arrayref can crash the process or dereference an address chosen by a JSON number.
Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.
| Hersteller | Produkt | Versionen | |
|---|---|---|---|
| — | Cpanel-JSON-XS | 4.33 – < 4.80 |
Zwei kostenlose Werkzeuge, eine Abwehr: Der Sensor erfasst, wer Ihren Server abtastet; Shield stoppt bekannte Angreifer, bevor sie Ihre Website erreichen.
Einmal installiert, steigt Ihr tägliches API-Kontingent auf 30.000 Abfragen — ohne Antrag.
