CVE-2023-22617

NameCVE-2023-22617
DescriptionA remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, because QName minimization is used in QM fallback mode. This is fixed in 4.8.1.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1029367

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pdns-recursor (PTS)jessie, jessie (lts)3.6.2-2+deb8u4vulnerable
buster (security), buster, buster (lts)4.1.11-1+deb10u2fixed
bullseye4.4.2-3fixed
bookworm (security), bookworm4.8.8-1fixed
sid, trixie5.0.9-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pdns-recursorsourcejessie(unfixed)end-of-life
pdns-recursorsourcebuster(not affected)
pdns-recursorsourcebullseye(not affected)
pdns-recursorsource(unstable)4.8.1-11029367

Notes

[bullseye] - pdns-recursor <not-affected> (Vulnerable code introduced later)
[buster] - pdns-recursor <not-affected> (Vulnerable code introduced later)
https://www.openwall.com/lists/oss-security/2023/01/20/1
https://downloads.powerdns.com/patches/2023-01/
https://github.com/PowerDNS/pdns/pull/12442

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