CVE-2018-5740 (retired)

Priority
Description
"deny-answer-aliases" is a little-used feature intended to help recursive
server operators protect end users against DNS rebinding attacks, a
potential method of circumventing the security model used by client
browsers. However, a defect in this feature makes it easy, when the feature
is in use, to experience an assertion failure in name.c. Affects BIND
9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4,
9.12.0->9.12.2, 9.13.0->9.13.2.
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 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)
Patches:
Upstream:98b2377de3125e4f12c05f0b04f8cac214b76120 (v9.11)
Upstream:02e8b3f8dcfdb9877cb053af7ca34809e8543420 (v9.11)
Upstream:ba162bd0d49dfb699162712b1c22783bc88b1632 (v9.11)
More Information

Updated: 2019-08-23 09:34:40 UTC (commit 436fd4ed4cf0038ddd382cb8649607ace163dda7)