An error processing RPZ rules can cause named to loop endlessly after handling a query

CVE-2017-3140
3.7LOW

Key Information

Vendor
Isc
Status
Bind 9
Vendor
CVE Published:
16 January 2019

Summary

If named is configured to use Response Policy Zones (RPZ) an error processing some rule types can lead to a condition where BIND will endlessly loop while handling a query. Affects BIND 9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1.

Affected Version(s)

BIND 9 = 9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1

EPSS Score

11% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Risk change from: 5.9 to: 3.7 - (LOW)

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database

Credit

ISC would like to thank Oli Schacher of Switch for bringing this defect to our attention.
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