Debian Security Advisory
DLA-1025-1 bind9 -- LTS security update
- Date Reported:
- 13 Jul 2017
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2017-3142, CVE-2017-3143.
- More information:
An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name may be able to circumvent TSIG authentication of AXFR requests via a carefully constructed request packet. A server that relies solely on TSIG keys for protection with no other ACL protection could be manipulated into:
- providing an AXFR of a zone to an unauthorized recipient
- accepting bogus NOTIFY packets
An attacker who is able to send and receive messages to an authoritative DNS server and who has knowledge of a valid TSIG key name for the zone and service being targeted may be able to manipulate BIND into accepting an unauthorized dynamic update.
For Debian 7
Wheezy, these problems have been fixed in version 1:9.8.4.dfsg.P1-6+nmu2+deb7u17.
We recommend that you upgrade your bind9 packages.
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS