CVE-2017-15120
An unauthenticated remote attacker could cause a denial of service.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 51.4%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 51.35% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- powerdns/recursor · debian/debian linux
- Source
- secalert@redhat.com
EPSS 51.4% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://seclists.org/oss-sec/2017/q4/382Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/106335Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15120Issue Tracking, Third Party Advisory
- https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-08.htmlPatch, Vendor Advisory
- https://www.debian.org/security/2017/dsa-4063Third Party Advisory
- http://seclists.org/oss-sec/2017/q4/382Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/106335Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15120Issue Tracking, Third Party Advisory
- https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-08.htmlPatch, Vendor Advisory
- https://www.debian.org/security/2017/dsa-4063Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.