An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.
References
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068 | Issue Tracking Third Party Advisory |
https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/ | Vendor Advisory |
https://www.debian.org/security/2017/dsa-3763 | Third Party Advisory |
https://www.debian.org/security/2017/dsa-3764 | Third Party Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068 | Issue Tracking Third Party Advisory |
https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/ | Vendor Advisory |
https://www.debian.org/security/2017/dsa-3763 | Third Party Advisory |
https://www.debian.org/security/2017/dsa-3764 | Third Party Advisory |
Configurations
History
21 Nov 2024, 02:57
Type | Values Removed | Values Added |
---|---|---|
CVSS |
v2 : v3 : |
v2 : 7.8
v3 : 5.3 |
References | () https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068 - Issue Tracking, Third Party Advisory | |
References | () https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/ - Vendor Advisory | |
References | () https://www.debian.org/security/2017/dsa-3763 - Third Party Advisory | |
References | () https://www.debian.org/security/2017/dsa-3764 - Third Party Advisory |
Information
Published : 2018-09-11 13:29
Updated : 2024-11-21 02:57
NVD link : CVE-2016-7068
Mitre link : CVE-2016-7068
CVE.ORG link : CVE-2016-7068
JSON object : View
Products Affected
debian
- debian_linux
powerdns
- recursor
- authoritative