- Vulnerability/
- USN-6390-1
USN-6390-1: Bind vulnerabilities
First published: Wed Sep 20 2023(Updated: )
It was discovered that Bind incorrectly handled certain control channel messages. A remote attacker with access to the control channel could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2023-3341) Robert Story discovered that Bind incorrectly handled certain DNS-over-TLS queries. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04. (CVE-2023-4236)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/bind9 | <1:9.18.12-1ubuntu1.2 | 1:9.18.12-1ubuntu1.2 |
| =23.04 | ||
| All of | ||
| ubuntu/bind9 | <1:9.18.12-0ubuntu0.22.04.3 | 1:9.18.12-0ubuntu0.22.04.3 |
| =22.04 | ||
| All of | ||
| ubuntu/bind9 | <1:9.16.1-0ubuntu2.16 | 1:9.16.1-0ubuntu2.16 |
| =20.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2023-3341
- https://ubuntu.com/security/CVE-2023-4236
- https://ubuntu.com/security/notices/USN-6421-1
- https://launchpad.net/ubuntu/+source/bind9/1:9.18.12-1ubuntu1.2
- https://launchpad.net/ubuntu/+source/bind9/1:9.18.12-0ubuntu0.22.04.3
- https://launchpad.net/ubuntu/+source/bind9/1:9.16.1-0ubuntu2.16
- https://ubuntu.com/security/notices/USN-6390-1 (Advisory)
Frequently Asked Questions
What is the severity of USN-6390-1?
USN-6390-1 has a severity rating of moderate.
How does USN-6390-1 affect Bind?
USN-6390-1 affects Bind by allowing a remote attacker with access to the control channel to cause Bind to crash, resulting in a denial of service.
What is the remedy for USN-6390-1?
The remedy for USN-6390-1 is to upgrade to Bind version 1:9.18.12-1ubuntu1.2 or later.
Which Ubuntu versions are affected by USN-6390-1?
USN-6390-1 affects Ubuntu versions 23.04, 22.04, and 20.04.
Where can I find more information about USN-6390-1?
You can find more information about USN-6390-1 on the Ubuntu Security Notices website.
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