CVE-2016-1285
bind: malformed packet sent to rndc can trigger assertion failure
Severity
ImportantRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · March 9, 2016
Updated · November 21, 2025
Description
A denial of service flaw was found in the way BIND processed certain control channel input. A remote attacker able to send a malformed packet to the control channel could use this flaw to cause named to crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Restrict access to the control channel (by using the "controls" configuration statement in named.conf) to allow connection only from trusted systems.
Note that if no "controls" statement is present, named defaults to allowing control channel connections only from localhost (127.0.0.1 and ::1) if and only if the file rndc.key exists in the configuration directory and contains valid key syntax. If rndc.key is not present and no "controls" statement is present in named.conf, named will not accept commands on the control channel.
CVSS / CWE
CVSS 2.0 · 5AV:N/AC:L/Au:N/C:N/I:N/A:P
CWE-617 · Reachable Assertion