CVE-2018-5740
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Isc Bind
PublishedJan 16, 2019
First seenJan 16, 2019
How to fix
Update
- isc bind9.8.8, 9.9.13, 9.10.8, 9.11.4, 9.12.2, 9.13.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| isc bind | 9.7.0 ≤ v < 9.8.8, 9.9.0 ≤ v < 9.9.13, 9.10.0 ≤ v < 9.10.8, 9.11.0 ≤ v < 9.11.4, 9.12.0 ≤ v < 9.12.2, 9.13.0 ≤ v < 9.13.2 | 9.8.8, 9.9.13, 9.10.8, 9.11.4, 9.12.2, 9.13.2 |
| redhat enterprise_linux_desktop | 6.0, 7.0 | — |
| redhat enterprise_linux_server | 6.0, 7.0 | — |
| redhat enterprise_linux_server_aus | 7.6 | — |
| redhat enterprise_linux_server_eus | 7.5, 7.6 | — |
| redhat enterprise_linux_workstation | 6.0, 7.0 | — |
| debian debian_linux | 8.0, 9.0 | — |
| netapp data_ontap_edge | No range specified | — |
| canonical ubuntu_linux | 12.04, 14.04, 16.04, 18.04 | — |
| hp hp-ux | No range specified | — |
| opensuse leap | 15.0, 15.1, 42.3 | — |
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