- Vulnerability/
- USN-4365-2
USN-4365-2: Bind vulnerabilities
First published: Wed May 20 2020(Updated: )
USN-4365-1 fixed several vulnerabilities in Bind. This update provides the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM. Original advisory details: Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Bind incorrectly limited certain fetches. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service, or possibly use Bind to perform a reflection attack. (CVE-2020-8616) Tobias Klein discovered that Bind incorrectly handled checking TSIG validity. A remote attacker could use this issue to cause Bind to crash, resulting in a denial of service, or possibly perform other attacks. (CVE-2020-8617)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/bind9 | <1:9.9.5.dfsg-3ubuntu0.19+esm2 | 1:9.9.5.dfsg-3ubuntu0.19+esm2 |
| Ubuntu Ubuntu | =14.04 | |
| All of | ||
| ubuntu/bind9 | <1:9.8.1.dfsg.P1-4ubuntu0.30 | 1:9.8.1.dfsg.P1-4ubuntu0.30 |
| Ubuntu Ubuntu | =12.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2020-8616
- https://ubuntu.com/security/CVE-2020-8617
- https://ubuntu.com/security/notices/USN-4365-1
- https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.19+esm2
- https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.30
- https://ubuntu.com/security/notices/USN-4365-2 (Advisory)
Frequently Asked Questions
What is the vulnerability ID for this advisory?
The vulnerability ID for this advisory is USN-4365-2.
What software is affected by this vulnerability?
The software affected by this vulnerability is Bind version 9.9.5.dfsg-3ubuntu0.19+esm2 on Ubuntu 12.04 ESM, and Bind version 9.8.1.dfsg.P1-4ubuntu0.30 on Ubuntu 14.04.
What is the severity of this vulnerability?
The severity of this vulnerability has not been provided in the advisory. Please refer to the referenced CVE links for more information.
How do I fix the Bind vulnerabilities on Ubuntu 12.04?
To fix the Bind vulnerabilities on Ubuntu 12.04, you can install the provided update package 1:9.8.1.dfsg.P1-4ubuntu0.30.
How do I fix the Bind vulnerabilities on Ubuntu 14.04?
To fix the Bind vulnerabilities on Ubuntu 14.04, you can install the provided update package 1:9.9.5.dfsg-3ubuntu0.19+esm2.
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