CVE-2022-0396

Name of the Vulnerable Software and Affected Versions BIND versions 9.16.11 through 9.16.26 BIND versions 9.17.0 through 9.18.0 BIND Supported Preview Edition versions 9.16.11-S1 through 9.16.26-S1

Description The issue is related to improper resource cleanup, which can be exploited by a remote attacker sending specially crafted TCP streams with 'keep-response-order' enabled. This can cause connections to remain in CLOSE WAIT status for an indefinite period, even after the client has terminated the connection.

Recommendations For BIND versions 9.16.11 through 9.16.26, update to a version outside of this range to resolve the issue. For BIND versions 9.17.0 through 9.18.0, update to a version outside of this range to resolve the issue. For BIND Supported Preview Edition versions 9.16.11-S1 through 9.16.26-S1, update to a version outside of this range to resolve the issue. As a temporary workaround, consider restricting the use of TCP streams with 'keep-response-order' enabled to minimize the risk of exploitation.