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Improper Locking

CVE-2022-3996

High
7.5/10

Summary

If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs. Policy processing being enabled on a publicly facing server is not considered to be a common setup. Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling either `X509_VERIFY_PARAM_add0_policy()' or `X509_VERIFY_PARAM_set1_policies()' functions. This issue affects OpenSSL versions 3.0.0-alpha14 prior to 3.1.0-beta1.

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

CWE-667 - Improper Locking

The software does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

References

Advisory Timeline

  • Published