Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2012-1033

Published: 8 February 2012

The resolver in ISC BIND 9 through 9.8.1-P1 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names" attack.

Notes

AuthorNote
mdeslaur
upstream advisory says they won't be releasing a fix for this
dns-sec is the workaround.
upstream apparently included the fix anyway:
3282. [bug] Restrict the TTL of NS RRset to no more than that
of the old NS RRset when replacing it.
[RT #27792] [RT #27884]

Priority

Low

Status

Package Release Status
bind9
Launchpad, Ubuntu, Debian
hardy
Released (1:9.4.2.dfsg.P2-2ubuntu0.10)
lucid
Released (1:9.7.0.dfsg.P1-1ubuntu0.5)
maverick Ignored
(end of life)
natty
Released (1:9.7.3.dfsg-1ubuntu2.4)
oneiric
Released (1:9.7.3.dfsg-1ubuntu4.2)
precise
Released (1:9.8.1.dfsg.P1-4ubuntu0.1)
upstream
Released (9.6-ESV-R6,9.7.5,9.8.2)