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Ubuntu Security Notice USN-4399-1

Ubuntu Security Notice USN-4399-1
Posted Jun 18, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4399-1 - 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. 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.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2020-8618, CVE-2020-8619
MD5 | a0530899b395851dffa5d9842ee214cb

Ubuntu Security Notice USN-4399-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4399-1
June 17, 2020

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

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4399-1
CVE-2020-8618, CVE-2020-8619

Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.16.1-0ubuntu2.2
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