Vulnerability Monitor

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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 containing a CNAME of a different class than IN. An unauthenticated remote attacker could cause a denial of service.

Published

2018-07-27T15:29:00.343

Last Modified

2024-11-21T03:14:06.713

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-476
Type: Primary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	powerdns	recursor	< 4.0.8	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes

References

http://seclists.org/oss-sec/2017/q4/382 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/106335 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15120 Issue Tracking, Third Party Advisory ([email protected])
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-08.html Patch, Vendor Advisory ([email protected])
https://www.debian.org/security/2017/dsa-4063 Third Party Advisory ([email protected])
http://seclists.org/oss-sec/2017/q4/382 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/106335 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15120 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-08.html Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2017/dsa-4063 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)