CVE-2016-2120
Last modified
CVE-2016-2120 is a vulnerability of currently unknown severity. An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.. EPSS estimates a 2.00% chance of exploitation in the next 30 days.
Description
An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Powerdns | Authoritative | <= 3.4.10 |
| Powerdns | Authoritative | >= 4.0.0, <= 4.0.1 |
| Debian | Debian Linux | 8.0 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2120Issue Tracking, Third Party Advisory
- https://www.debian.org/security/2017/dsa-3764Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2120Issue Tracking, Third Party Advisory
- https://www.debian.org/security/2017/dsa-3764Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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