CVE-2019-3807

NameCVE-2019-3807
DescriptionAn issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pdns-recursor (PTS)jessie3.6.2-2+deb8u4fixed
jessie (security)3.6.2-2+deb8u3fixed
stretch4.0.4-1+deb9u4fixed
stretch (security)4.0.4-1+deb9u3fixed
buster, sid4.1.11-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pdns-recursorsource(unstable)4.1.9-1medium
pdns-recursorsourcejessie(not affected)
pdns-recursorsourcestretch(not affected)

Notes

[stretch] - pdns-recursor <not-affected> (Only affects 4.1.x)
[jessie] - pdns-recursor <not-affected> (Only affects 4.1.x)
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2019-02.html

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