CVE-2017-3138

named exits with a REQUIRE assertion failure if it receives a null command string on its control channel

Published Jan 16, 2019 CVSS 3.0 · 6.5 Medium EPSS 5.5% KEV · Not listed
Description
named contains a feature which allows operators to issue commands to a running server by communicating with the server process over a control channel, using a utility program such as rndc. A regression introduced in a recent feature change has created a situation under which some versions of named can be caused to exit with a REQUIRE assertion failure if they are sent a null command string. Affects BIND 9.9.9->9.9.9-P7, 9.9.10b1->9.9.10rc2, 9.10.4->9.10.4-P7, 9.10.5b1->9.10.5rc2, 9.11.0->9.11.0-P4, 9.11.1b1->9.11.1rc2, 9.9.9-S1->9.9.9-S9.

Remediation

Vendor Solution

Upgrade to the patched release most closely related to your current version of BIND. These can all be downloaded from http://www.isc.org/downloads. BIND 9 version 9.9.9-P8 BIND 9 version 9.10.4-P8 BIND 9 version 9.11.0-P5 BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. BIND 9 version 9.9.9-S10 New maintenance releases of BIND are also scheduled which contain the fix for this vulnerability. In addition to the security releases listed above, fixes for this vulnerability are also included in these release candidate versions: BIND 9 version 9.9.10rc3 BIND 9 version 9.10.5rc3 BIND 9 version 9.11.1rc3


Vendor Workaround

None. However, in a properly configured server, access to the control channel should already be limited by either network ACLs, TSIG keys, or both.

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-957-1 bind9 security update
Debian DSA Debian DSA DSA-3854-1 bind9 security update
Ubuntu USN Ubuntu USN USN-3259-1 Bind vulnerabilities
History
Type Values Removed Values Added
Title named exits with a REQUIRE assertion failure if it receives a null command string on its control channel named exits with a REQUIRE assertion failure if it receives a null command string on its control channel
Weaknesses

Sources

Status
PUBLISHED
Assigner
isc
Published
Updated
Sep 16, 2024, 10:40 PM
Reserved
Dec 2, 2016, 12:00 AM
Status
Modified
Published
Jan 16, 2019, 8:29 PM
Modified
Jun 17, 2026, 1:17 AM
Severity
Moderate
Public date
Apr 12, 2017, 12:00 AM