CVE-2018-5740

Priority
Description
A flaw in the "deny-answer-aliases" feature can cause an INSIST assertion
failure in named
Accidental or deliberate triggering of this defect will cause an INSIST
assertion failure in named, causing the named process to stop execution and
resulting in denial of service to clients. Only servers which have explicitly
enabled the "deny-answer-aliases" feature are at risk and disabling the feature
prevents exploitation.
Notes
 sbeattie> MITIGATION:
  - disable use of "deny-answer-aliases" feature
Package
Source: bind9 (LP Ubuntu Debian)
Upstream:needs-triage
Ubuntu 12.04 ESM (Precise Pangolin):released (1:9.8.1.dfsg.P1-4ubuntu0.26)
Ubuntu 14.04 LTS (Trusty Tahr):released (1:9.9.5.dfsg-3ubuntu0.18)
Ubuntu 16.04 LTS (Xenial Xerus):released (1:9.10.3.dfsg.P4-8ubuntu1.11)
Ubuntu 18.04 LTS (Bionic Beaver):released (1:9.11.3+dfsg-1ubuntu1.2)
Ubuntu 18.10 (Cosmic Cuttlefish):released (1:9.11.4+dfsg-3ubuntu4)
Patches:
Upstream:98b2377de3125e4f12c05f0b04f8cac214b76120 (v9.11)
Upstream:02e8b3f8dcfdb9877cb053af7ca34809e8543420 (v9.11)
Upstream:ba162bd0d49dfb699162712b1c22783bc88b1632 (v9.11)
More Information

Updated: 2019-01-14 22:31:49 UTC (commit 51f9b73af244ba86b9321e46e526586c25a8e060)