CVE-2008-1637

Name	CVE-2008-1637
Description	PowerDNS Recursor before 3.1.5 uses insufficient randomness to calculate (1) TRXID values and (2) UDP source port numbers, which makes it easier for remote attackers to poison a DNS cache, related to (a) algorithmic deficiencies in rand and random functions in external libraries, (b) use of a 32-bit seed value, and (c) choice of the time of day as the sole seeding information.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-1544-1, DSA-1544-2

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pdns-recursor (PTS)	buster, buster (security)	4.1.11-1+deb10u1	fixed
	bullseye	4.4.2-3	fixed
	bookworm	4.8.4-1	fixed
	bookworm (security)	4.8.7-1	fixed
	trixie	4.9.3-1	fixed
	sid	4.9.4-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
pdns-recursor	source	etch	3.1.4-1+etch2		DSA-1544-2
pdns-recursor	source	(unstable)	3.1.7-1

Fix in 3.1.5 was incomplete, see CVE-2008-3217