named may terminate unexpectedly when processing ECS options in repeated responses to iterative queries

CVE-2022-3488

7.5HIGH

Key Information

Vendor
Isc
Status
Bind 9
Vendor
CVE Published:
26 January 2023

Badges

👾 Exploit Exists

Summary

Processing of repeated responses to the same query, where both responses contain ECS pseudo-options, but where the first is broken in some way, can cause BIND to exit with an assertion failure.

'Broken' in this context is anything that would cause the resolver to reject the query response, such as a mismatch between query and answer name. This issue affects BIND 9 versions 9.11.4-S1 through 9.11.37-S1 and 9.16.8-S1 through 9.16.36-S1.

Affected Version(s)

BIND 9 9.11.4-S1 <= 9.11.37-S1

BIND 9 9.16.8-S1 <= 9.16.36-S1

References

https://kb.isc.org/docs/cve-2022-3488
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database

Credit

ISC would like to thank Infoblox for bringing this vulnerability to our attention.
.