USN-3346-3: Bind vulnerabilities
Ubuntu Security Notice USN-3346-3
8th November, 2017
bind9 vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 12.04 LTS
Summary
Bind could be made to serve incorrect information or expose sensitive
information over the network.
Software description
- bind9
– Internet Domain Name Server
Details
USN-3346-1 and USN-3346-2 fixed two vulnerabilities in Bind and a regression,
respectively. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Clément Berthaux discovered that Bind did not correctly check TSIG
authentication for zone update requests. An attacker could use this
to improperly perform zone updates. (CVE-2017-3143)
Clément Berthaux discovered that Bind did not correctly check TSIG
authentication for zone transfer requests. An attacker could use this
to improperly transfer entire zones. (CVE-2017-3142)
In addition, this update adds the new root zone key signing key (KSK).
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 12.04 LTS:
-
bind9
1:9.8.1.dfsg.P1-4ubuntu0.23
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Bind to make
all the necessary changes.
References
Source: USN-3346-3: Bind vulnerabilities
