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Missing Release of Memory after Effective Lifetime

CVE-2021-20212

High
7.5/10

Summary

A flaw was found in Privoxy in versions before 3.0.29. Memory leak if multiple filters are executed and the last one is skipped due to a pcre error leading to a system crash.

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

CWE-401 - Missing release of memory after effective lifetime (memory leak)

'Missing release of memory after effective lifetime (memory leak)' is a weakness that occurs when software doesn't effectively release allocated memory after it is used. If not addressed, this enables attackers to launch denial of service attacks (by crashing or hanging the program) or take advantage of other unexpected behavior resulting from low memory conditions.

References

Advisory Timeline

  • Published