High severity · published Jul 27, 2018
CVE-2017-15120
An issue has been found in the parsing of authoritative answers in PowerDNS Recursor before 4.0.8, leading to a NULL pointer dereference when parsing a specially crafted answer…
7.5
CVSS
51.4%
EPSS
No
On KEV
Description
An issue has been found in the parsing of authoritative answers in PowerDNS Recursor before 4.0.8, leading to a NULL pointer dereference when parsing a specially crafted answer containing a CNAME of a different class than IN. An unauthenticated remote attacker could cause a denial of service.
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)51.4% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
RE
Recursor · Powerdns
before 4.0.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-15120
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-15120
Mailing List
http://seclists.org/oss-sec/2017/q4/382
Third Party Advisory
http://www.securityfocus.com/bid/106335
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15120
Patch
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-08.html
Third Party Advisory
https://www.debian.org/security/2017/dsa-4063
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