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Loop with Unreachable Exit Condition ('Infinite Loop')

CVE-2023-27560

Severity High
Score 7.5/10

Summary

The "Math/PrimeField.php" file in phpseclib/phpseclib 3.0.x prior to 3.0.19 has an Infinite Loop with composite primefields.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-835 - Loop with Unreachable Exit Condition

Loops with multiple exits and flags detract from the quality of an application. They tend to make control structures difficult to understand, and introduce the risk of non-termination and other structural problems. The vulnerability “loop with unreachable exit condition” enables attackers to exploit this flaw, leading to denial of service.

Advisory Timeline

  • Published