SynopsisThe remote Debian host is missing a security update.
DescriptionSeveral 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.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpgrade the affected packages.