This flaw appears to be exploitable only when debug logging is enabled and set to at least a level of 10. As this configuration should be rare in production instances of bind, it is unlikely that most servers will be exploitable. The debug level of the bind server can be checked via the rndc status command, which will return the current trace level as "debug level". A value of 10 or above would most likely make this flaw exploitable.
CVSS v3 metrics
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
|CVSS3 Base Score||5.9|
|CVSS3 Base Metrics||CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H|
Affected Packages State
|Red Hat Enterprise Linux 7||bind||Affected|
|Red Hat Enterprise Linux 6||bind||Not affected|
|Red Hat Enterprise Linux 5||bind97||Not affected|
|Red Hat Enterprise Linux 5||bind||Not affected|
Ensure that debug logging is disabled and set to 0. This can be verified on the Bind server by the rndc status command.
CVE description copyright © 2017, The MITRE Corporation