Debian Security Advisory
DLA-805-1 bind9 -- LTS security update
- Date Reported:
- 29 Jan 2017
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2016-9131, CVE-2016-9147, CVE-2016-9444.
- More information:
Several denial-of-service vulnerabilities (assertion failures) were discovered in BIND, a DNS server implementation.
A crafted upstream response to an ANY query could cause an assertion failure.
A crafted upstream response with self-contradicting DNSSEC data could cause an assertion failure.
Specially-crafted upstream responses with a DS record could cause an assertion failure.
These vulnerabilities predominantly affect DNS servers providing recursive service. Client queries to authoritative-only servers cannot trigger these assertion failures. These vulnerabilities are present whether or not DNSSEC validation is enabled in the server configuration.
For Debian 7
Wheezy, these problems have been fixed in version 1:9.8.4.dfsg.P1-6+nmu2+deb7u14.
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