CVE-2016-5427
First published: Wed Sep 21 2016(Updated: )
PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PowerDNS | <=3.4.9 |
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Reference Links
- http://www.debian.org/security/2016/dsa-3664
- http://www.openwall.com/lists/oss-security/2016/09/09/3
- http://www.securityfocus.com/bid/92917
- http://www.securitytracker.com/id/1036761
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-01/
- https://github.com/PowerDNS/pdns/commit/881b5b03a590198d03008e4200dd00cc537712f3
Frequently Asked Questions
What is the severity of CVE-2016-5427?
CVE-2016-5427 has been assigned a medium severity rating due to its potential to cause denial of service.
How do I fix CVE-2016-5427?
To fix CVE-2016-5427, upgrade PowerDNS Authoritative Server to version 3.4.10 or later.
What type of attack does CVE-2016-5427 enable?
CVE-2016-5427 enables remote attackers to cause denial of service through crafted DNS queries.
Which versions of PowerDNS are affected by CVE-2016-5427?
PowerDNS Authoritative Server versions prior to 3.4.10, specifically up to version 3.4.9, are affected by CVE-2016-5427.
Is CVE-2016-5427 a local or remote vulnerability?
CVE-2016-5427 is a remote vulnerability that can be exploited by sending malicious DNS queries.
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/severity
- agent/first-publish-date
- agent/event
- agent/description
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/powerdns
- canonical/powerdns
- version/powerdns/3.4.9