NULL Pointer Dereference Affecting pdns-recursor package, versions <4.1.0-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.7% (81st percentile)

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  • Snyk IDSNYK-DEBIAN12-PDNSRECURSOR-1556427
  • published27 Jun 2018
  • disclosed27 Jul 2018

Introduced: 27 Jun 2018

CVE-2017-15120  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Debian:12 pdns-recursor to version 4.1.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pdns-recursor package and not the pdns-recursor package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.