Bug 1353565 (CVE-2016-6172) - CVE-2016-6172 pdns: Improper restriction of zone size limit
Summary: CVE-2016-6172 pdns: Improper restriction of zone size limit
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-6172
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1353566 1353567
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-07-07 13:10 UTC by Adam Mariš
Modified: 2019-09-29 13:52 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2016-07-07 13:27:38 UTC
Embargoed:

Attachments (Terms of Use)

Description Adam Mariš 2016-07-07 13:10:56 UTC 
It was found that PowerDNS does not implement reasonable restrictions for zone sizes. This allows an explicitly configured primary DNS server for a zone to crash a secondary DNS server, affecting service of other zones hosted on the same secondary server.

CVE request:

http://seclists.org/oss-sec/2016/q3/19

Proposed patch:

https://github.com/sischkg/xfer-limit/blob/master/powerdns-3.4.7-xfer-limit-0.0.1.patch
Comment 1 Adam Mariš 2016-07-07 13:11:54 UTC 
Created pdns tracking bugs for this issue:

Affects: fedora-all [bug 1353566]
Affects: epel-all [bug 1353567]
Comment 2 Martin Prpič 2016-07-08 06:42:24 UTC 
Upstream issue:

https://github.com/PowerDNS/pdns/issues/4128

The following patches are still under review but should be merged soon:

- Master: https://github.com/PowerDNS/pdns/pull/4133
- 3.4.x: https://github.com/PowerDNS/pdns/pull/4134
Comment 3 Fedora Update System 2016-08-08 20:23:57 UTC 
pdns-4.0.1-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Note You need to log in before you can comment on or make changes to this bug.