CVE catalog

CVE-2006-4252

pdns: CVE-2006-4252

Severity: Low
Published: Nov 14, 2006, 8:07:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 5.97% · Oct 25, 2026

PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	pdns	sid	`5.1.5-1`	not affected
Debian	pdns	forky	`5.1.5-1`	not affected
Debian	pdns	trixie	`4.9.17-0+deb13u1`	not affected
Debian	pdns	trixie-security	`4.9.18-0+deb13u1`	not affected
Debian	pdns	bookworm	`4.7.3-2`	not affected
Debian	pdns-recursor	sid	`5.4.9-1`	fixed
Debian	pdns-recursor	forky	`5.4.8-1`	fixed
Debian	pdns-recursor	trixie	`5.2.13-0+deb13u1`	fixed
Debian	pdns-recursor	trixie-security	`5.2.13-0+deb13u1`	fixed
Debian	pdns-recursor	bookworm	`4.8.8-1+deb12u1`	fixed
Debian	pdns-recursor	bookworm-security	`4.8.8-1+deb12u1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	pdns	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	pdns	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	pdns	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	pdns	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Debian	pdns-recursor	source	sid	`3.1.4-1`	not yet assigned	Not reported	[398559]
Debian	pdns-recursor	source	forky	`3.1.4-1`	not yet assigned	Not reported	[398559]
Debian	pdns-recursor	source	trixie	`3.1.4-1`	not yet assigned	Not reported	[398559]
Debian	pdns-recursor	source	bookworm	`3.1.4-1`	not yet assigned	Not reported	[398559]

[Debian bug #398559]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[pdns-backend-bind]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-geoip]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-ldap]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-lmdb]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-lua2]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-mysql]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-odbc]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-pgsql]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-pipe]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-remote]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-sqlite3]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-backend-tinydns]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-ixfrdist]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-recursor]Unknown
Details (4)
- 4.8.8-1+deb12u1 · amd64 · bookworm
  Fixed · Fixed: 3.1.4-1
  dsa · pdns-recursor · debian · bookworm; dsa · pdns-recursor · debian · 12
- 4.8.8-1+deb12u1 · arm64 · bookworm
  Fixed · Fixed: 3.1.4-1
  dsa · pdns-recursor · debian · bookworm; dsa · pdns-recursor · debian · 12
- 4.8.8-1+deb12u1 · amd64 · bookworm-security
  Fixed · Fixed: 3.1.4-1
  dsa · pdns-recursor · debian · bookworm; dsa · pdns-recursor · debian · 12
- 4.8.8-1+deb12u1 · arm64 · bookworm-security
  Fixed · Fixed: 3.1.4-1
  dsa · pdns-recursor · debian · bookworm; dsa · pdns-recursor · debian · 12
[pdns-server]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
[pdns-tools]Unknown
Source package: [pdns]
Details (2)
- 4.7.3-2 · amd64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm
- 4.7.3-2 · arm64 · bookworm
  Not affected
  dsa · pdns · debian · bookworm

[Debian 13 (Trixie)]

[pdns-recursor]Unknown
Details (4)
- 5.2.11-0+deb13u1 · amd64 · trixie
  Fixed · Fixed: 3.1.4-1
  dsa · pdns-recursor · debian · 13
- 5.2.11-0+deb13u1 · arm64 · trixie
  Fixed · Fixed: 3.1.4-1
  dsa · pdns-recursor · debian · 13
- 5.2.13-0+deb13u1 · amd64 · trixie-security
  Fixed · Fixed: 3.1.4-1
  dsa · pdns-recursor · debian · 13
- 5.2.13-0+deb13u1 · arm64 · trixie-security
  Fixed · Fixed: 3.1.4-1
  dsa · pdns-recursor · debian · 13

Observed: Oct 23, 2026, 5:03:09 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]