CVE-2022-3488

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

Description

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.

Remediation

Solution:

  • Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.37-S1.

Workaround:

  • No workarounds known.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 10.10% Top 10%
Vendor Advisory isc.org
Affected: ISC BIND 9
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2022-3488?
CVE-2022-3488 has been scored as a high severity vulnerability.
How to fix CVE-2022-3488?
To fix CVE-2022-3488: Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.37-S1.
Is CVE-2022-3488 being actively exploited in the wild?
It is possible that CVE-2022-3488 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-3488?
CVE-2022-3488 affects ISC BIND 9.
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