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

What is CVE-2017-3140?

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.

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Deploy the Patch

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

References

http://www.securitytracker.com/id/1038692
vdb-entryx_refsource_SECTRACK
https://security.gentoo.org/glsa/201708-01
vendor-advisoryx_refsource_GENTOO
http://www.securityfocus.com/bid/99088
vdb-entryx_refsource_BID

EPSS Score

19% chance of being exploited in the next 30 days.

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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