USN-4399-1: Bind vulnerabilities
bind9 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary
Bind could be made to crash if it received specially crafted network
traffic.
Software Description
- bind9 – Internet Domain Name Server
Details
It was discovered that Bind incorrectly handled large responses during zone
transfers. A remote attacker could possibly use this issue to cause Bind to
crash, resulting in a denial of service. (CVE-2020-8618)
It was discovered that Bind incorrectly handled certain asterisk characters
in zone files. A remote attacker could possibly use this issue to cause
Bind to crash, resulting in a denial of service. (CVE-2020-8619)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 20.04 LTS
- bind9 – 1:9.16.1-0ubuntu2.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
Source: USN-4399-1: Bind vulnerabilities
