CVE-2023-27560

Math/PrimeField.php in phpseclib 3.x before 3.0.19 has an infinite loop with composite primefields.

• https://github.com/phpseclib/phpseclib/commit/6298d1cd55c3ffa44533bd41906caec246b60440
  Patch
• https://github.com/phpseclib/phpseclib/releases/tag/3.0.19
  Release Notes
• https://github.com/phpseclib/phpseclib/commit/6298d1cd55c3ffa44533bd41906caec246b60440
  Patch
• https://github.com/phpseclib/phpseclib/releases/tag/3.0.19
  Release Notes