PT-2018-4901 · Powerdns+1 · Powerdns Authoritative Server+1
Mathieu Lafon
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Published
2017-01-13
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Updated
2024-06-15
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CVE-2016-2120
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
PowerDNS Authoritative Server versions up to and including 4.0.1
PowerDNS Authoritative Server versions up to and including 3.4.10
Description
The issue allows an authorized user to crash the server by inserting a specially crafted record in a zone under their control and then sending a DNS query for that record. This 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.
Recommendations
For PowerDNS Authoritative Server versions up to and including 3.4.10, update to a version later than 3.4.10 to resolve the issue.
For PowerDNS Authoritative Server versions up to and including 4.0.1, update to a version later than 4.0.1 to resolve the issue.
Fix
Integer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Powerdns Authoritative Server