BIND Supported Preview Edition can exit with an assertion failure if nxdomain-redirect is used

CVE-2019-6468

5.3MEDIUM

Key Information

Vendor
Isc
Status
Bind 9 Supported Preview Edition
Vendor
CVE Published:
24 April 2019

Summary

In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure. Versions affected: BIND Supported Preview Edition version 9.10.5-S1 -> 9.11.5-S5. ONLY BIND Supported Preview Edition releases are affected.

Affected Version(s)

BIND 9 Supported Preview Edition BIND 9 9.10.5-S1 -> 9.11.5-S5

References

https://kb.isc.org/docs/cve-2019-6468
x_refsource_CONFIRM
https://www.synology.com/security/advisory/Synology_SA_19_20
x_refsource_CONFIRM

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database

Credit

ISC would like to thank Quad9 for reporting this issue.
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