Math/PrimeField.php in phpseclib 3.x before 3.0.19 has an infinite loop with composite primefields.
{ "cna_assigner": "mitre", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27560.json" }
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-27560.json"