CVE-2022-0396

DoS from specifically crafted TCP packets

Published Mar 23, 2022 CVSS 3.1 · 5.3 Medium EPSS 2.7% KEV · Not listed
Description
BIND 9.16.11 -> 9.16.26, 9.17.0 -> 9.18.0 and versions 9.16.11-S1 -> 9.16.26-S1 of the BIND Supported Preview Edition. Specifically crafted TCP streams can cause connections to BIND to remain in CLOSE_WAIT status for an indefinite period of time, even after the client has terminated the connection.

Remediation

Vendor Solution

Upgrade to the patched release most closely related to your current version of BIND: 9.16.27 9.18.1 BIND Supported Preview Edition is a special feature-preview branch of BIND provided to eligible ISC support customers. 9.16.27-S1


Vendor Workaround

To mitigate this issue in all affected versions of BIND, use the default setting of keep-response-order { none; }. Active exploits: We are not aware of any active exploits.

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-5105-1 bind9 security update
EUVD EUVD EUVD-2022-15542 BIND 9.16.11 -> 9.16.26, 9.17.0 -> 9.18.0 and versions 9.16.11-S1 -> 9.16.26-S1 of the BIND Supported Preview Edition. Specifically crafted TCP streams can cause connections to BIND to remain in CLOSE_WAIT status for an indefinite period of time, even after the client has terminated the connection.
Ubuntu USN Ubuntu USN USN-5332-1 Bind vulnerabilities
History

No history.