CVE-2016-6172
First published: Mon Sep 26 2016(Updated: )
PowerDNS (aka pdns) Authoritative Server before 4.0.1 allows remote primary DNS servers to cause a denial of service (memory exhaustion and secondary DNS server crash) via a large (1) AXFR or (2) IXFR response.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SUSE Linux | =42.1 | |
| SUSE Linux | =13.2 | |
| PowerDNS | <=4.0.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00085.html
- http://www.debian.org/security/2016/dsa-3664
- http://www.openwall.com/lists/oss-security/2016/07/06/3
- http://www.securityfocus.com/bid/91678
- http://www.securitytracker.com/id/1036242
- https://doc.powerdns.com/md/changelog/#powerdns-authoritative-server-401
- https://github.com/PowerDNS/pdns/issues/4128
- https://github.com/PowerDNS/pdns/issues/4133
- https://github.com/PowerDNS/pdns/pull/4134
- https://github.com/sischkg/xfer-limit/blob/master/README.md
- https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html
Frequently Asked Questions
What is the severity of CVE-2016-6172?
CVE-2016-6172 has a severity classification that could lead to denial of service due to memory exhaustion.
How do I fix CVE-2016-6172?
To fix CVE-2016-6172, upgrade to PowerDNS Authoritative Server version 4.0.1 or later.
What platforms are affected by CVE-2016-6172?
CVE-2016-6172 affects openSUSE Leap 42.1, openSUSE 13.2, and PowerDNS Authoritative Server versions up to 4.0.0.
What attack vectors are associated with CVE-2016-6172?
CVE-2016-6172 can be exploited through large AXFR or IXFR responses sent from remote primary DNS servers.
What impact does CVE-2016-6172 have on DNS services?
The impact of CVE-2016-6172 includes memory exhaustion and potential crashes of secondary DNS servers.
- agent/type
- agent/remedy
- agent/references
- agent/author
- agent/weakness
- agent/severity
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/opensuse
- canonical/suse linux
- version/suse linux/42.1
- version/suse linux/13.2
- vendor/powerdns
- canonical/powerdns
- version/powerdns/4.0.0