CVE-2022-3488

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

Published Jan 25, 2023 CVSS 3.1 · 7.5 High EPSS 19.0% KEV · Not listed
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

Vendor Solution

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


Vendor Workaround

No workarounds known.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-42860 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
isc
Published
Updated
Apr 1, 2025, 2:12 PM
Reserved
Oct 13, 2022, 11:13 AM
Status
Modified
Published
Jan 26, 2023, 9:15 PM
Modified
Jun 17, 2026, 4:59 AM
Severity
Moderate
Public date
Jan 25, 2023, 12:00 AM