CVE-2022-1183: CVE-2022-1183: Destroying a TLS session early causes assertion failure - Security Advisories

CVE: CVE-2022-1183

Document version: 2.0

Posting date: 18 May 2022

Program impacted: BIND

Versions affected: BIND 9.18.0 -> 9.18.2 and 9.19.0 of the BIND 9.19 development branch

Severity: High

Exploitable: Remotely

Description:

An assertion failure can be triggered if a TLS connection to a configured http TLS listener with a defined endpoint is destroyed too early.

Impact:

On vulnerable configurations, the named daemon may, in some circumstances, terminate with an assertion failure. Vulnerable configurations are those that include a reference to http within the listen-on statements in their named.conf. TLS is used by both DNS over TLS (DoT) and DNS over HTTPS (DoH), but configurations using DoT alone are unaffected.

CVSS Score: 7.0

CVSS Vector: CVSS v3.1 Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C

For more information on the Common Vulnerability Scoring System and to obtain your specific environmental score please visit: https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C&version=3.1.

Workarounds:

No workarounds known.

Active exploits:

We are not aware of any active exploits.

Solution:

Upgrade to the patched release most closely related to your current version of BIND:

• BIND 9.18.3 (Current Stable)
• BIND 9.19.1 (Development)

Acknowledgments: ISC would like to thank Thomas Amgarten from arcade solutions ag for for discovering and reporting this issue.

Document revision history:

1.0 Early Notification, 11 May 2022
2.0 Public disclosure, 18 May 2022

Related documents:

See our BIND 9 Security Vulnerability Matrix for a complete listing of security vulnerabilities and versions affected.

Do you still have questions? Questions regarding this advisory should go to [email protected]. To report a new issue, please encrypt your message using [email protected]’s PGP key which can be found here: https://www.isc.org/pgpkey/. If you are unable to use encrypted email, you may also report new issues at: https://www.isc.org/reportbug/.

Note:

ISC patches only currently supported versions. When possible we indicate EOL versions affected. (For current information on which versions are actively supported, please see https://www.isc.org/download/.)

ISC Security Vulnerability Disclosure Policy:

Details of our current security advisory policy and practice can be found in the ISC Software Defect and Security Vulnerability Disclosure Policy at https://kb.isc.org/docs/aa-00861.

The Knowledgebase article https://kb.isc.org/docs/cve-2022-1183 is the complete and official security advisory document.

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