CVE-2017-15093

Name	CVE-2017-15093
Description	When api-config-dir is set to a non-empty value, which is not the case by default, the API in PowerDNS Recursor 4.x up to and including 4.0.6 and 3.x up to and including 3.7.4 allows an authorized user to update the Recursor's ACL by adding and removing netmasks, and to configure forward zones. It was discovered that the new netmask and IP addresses of forwarded zones were not sufficiently validated, allowing an authenticated user to inject new configuration directives into the Recursor's configuration.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pdns-recursor (PTS)	jessie, jessie (lts)	3.6.2-2+deb8u4	fixed
	buster (security), buster, buster (lts)	4.1.11-1+deb10u2	fixed
	bullseye	4.4.2-3	fixed
	bookworm (security), bookworm	4.8.8-1	fixed
	sid, trixie	5.1.3-1	fixed

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

Package	Type	Release	Fixed Version
pdns-recursor	source	wheezy	(not affected)
pdns-recursor	source	jessie	3.6.2-2+deb8u4
pdns-recursor	source	stretch	4.0.4-1+deb9u2
pdns-recursor	source	(unstable)	4.0.7-1

Notes

[wheezy] - pdns-recursor <not-affected> (Vulnerable code introduced later)
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-06.html
https://downloads.powerdns.com/patches/2017-06/