CVE-2019-6476 (GCVE-0-2019-6476)

Vulnerability from cvelistv5 – Published: 2019-10-17 19:17 – Updated: 2024-09-16 16:58
VLAI?
Summary
A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rather than resolving the query. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.
Severity ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • An attacker who manages to deliberately trigger this condition on a server which is performing recursion can cause named to exit, denying service to clients.
Assigner
isc
References
Impacted products
Vendor Product Version
ISC BIND 9 Affected: 9.14.0 up to 9.14.6
Affected: 9.15.0 up to 9.15.4
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.