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Integer Overflow or Wraparound

CVE-2016-2177

High
9.8/10

Summary

OpenSSL 1.0.1x before 1.0.1u and 1.0.2.x before 1.0.2i, incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a Denial of Service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to 's3_srvr.c', 'ssl_sess.c', and 't1_lib.c'.

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

CWE-190 - Integer Overflow or Wraparound

The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.

References

Advisory Timeline

  • Published