vulnwire
7.5high

CVE-2016-2120

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 th…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
2.0%
percentile 81%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

2.00% probability of exploitation in the next 30 days, higher than 81% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD3.06.5CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.0AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • [UNKNOWN] pdns

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

  • debian.org /security/2017/dsa-3764 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=CVE-2016-2120 · x_refsource_CONFIRM, x_transferred

Sources

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