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Improper Input Validation

CVE-2011-4407

Medium
4.3/10

Summary

ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.

  • MEDIUM
  • NETWORK
  • NONE
  • PARTIAL
  • NONE
  • NONE

CWE-20 - Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References

Advisory Timeline

  • Published