BIND Supported Preview Edition can exit with an assertion failure if ECS is in use

CVE-2019-6469

5.9MEDIUM

Key Information

Vendor
Isc
Status
Bind 9 Supported Preview Edition
Vendor
CVE Published:
29 May 2019

Summary

An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.

Affected Version(s)

BIND 9 Supported Preview Edition BIND 9.10.5-S1 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.

References

https://kb.isc.org/docs/cve-2019-6469
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https://support.f5.com/csp/article/K39751401?utm_source=f...
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CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
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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