Description
An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash.
References (2)
Core 2
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855
Vendor Advisory x_refsource_misc
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html
Scores
CVSS v3
7.5
EPSS
0.1983
EPSS Percentile
95.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (1)
powerdns/recursor
< 4.1.8
Published
Dec 03, 2018
Tracked Since
Feb 18, 2026