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Origin Validation Error

CVE-2017-6519

Severity High
Score 9.1/10

Summary

avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast queries with source addresses that are not on-link, which allows remote attackers to cause a denial of service (traffic amplification) and may cause information leakage by obtaining potentially sensitive information from the responding device via port-5353 UDP packets. NOTE: this may overlap CVE-2015-2809.

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

CWE-346 - Origin Validation Error

The software does not properly verify that the source of data or communication is valid.

References

Advisory Timeline

  • Published