High severity · published Dec 3, 2018
CVE-2018-16855
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…
7.5
CVSS
58.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)58.6% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RE
Recursor · Powerdns
before 4.1.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-16855
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-16855
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16855
Vendor Advisory
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-09.html
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