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Integer Overflow or Wraparound

CVE-2020-19909

Low
3.3/10

Summary

** DISPUTED ** Integer overflow vulnerability in "tool_operate.c" through curl 7.65.2 via a large value as the retry delay. NOTE: Many parties report that this has no direct security impact on the curl user; however, it may (in theory) cause a Denial of Service (DoS) to associated systems or networks if, for example, --retry-delay is misinterpreted as a value much smaller than what was intended. This is not especially plausible because the overflow only happens if the user was trying to specify that curl should wait weeks (or longer) before trying to recover from a transient error.

  • LOW
  • LOCAL
  • NONE
  • UNCHANGED
  • NONE
  • LOW
  • NONE
  • LOW

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