CVE-2017-15120

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
PowerDNS	pdns-recursor	4.0.8

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

Timeline

Published: Jul 27, 2018
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2017

CVE-2017-151215.5A non-privileged user is able to mount a fuse filesystem on RHEL 6 or 7 and crash a system if an application punches a hole in a file that d CVE-2017-151235.3A flaw was found in the CloudForms web interface, versions 5.8 - 5.10, where the RSS feed URLs are not properly restricted to authenticated CVE-2017-151247.5VNC server implementation in Quick Emulator (QEMU) 2.11.0 and older was found to be vulnerable to an unbounded memory allocation issue, as i CVE-2017-151255.4A flaw was found in CloudForms before 5.9.0.22 in the self-service UI snapshot feature where the name field is not properly sanitized for HT CVE-2017-151268.1A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure CVE-2017-151275.5A flaw was found in the hugetlb_mcopy_atomic_pte function in mm/hugetlb.c in the Linux kernel before 4.13. A superfluous implicit page unloc CVE-2017-151285.5A flaw was found in the hugetlb_mcopy_atomic_pte function in mm/hugetlb.c in the Linux kernel before 4.13.12. A lack of size check could cau CVE-2017-151294.7A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id CVE-2017-151305.9A denial of service flaw was found in dovecot before 2.2.34. An attacker able to generate random SNI server names could exploit TLS SNI conf CVE-2017-151317.8It was found that system umask policy is not being honored when creating XDG user directories, since Xsession sources xdg-user-dirs.sh befor CVE-2017-151327.5A flaw was found in dovecot 2.0 up to 2.2.33 and 2.3.0. An abort of SASL authentication results in a memory leak in dovecot's auth client us CVE-2017-151337.5A denial of service flaw was found in miekg-dns before 1.0.4. A remote attacker could use carefully timed TCP packets to block the DNS serve