CVEvulnerability

CVE-2008-1637

6.8 MEDIUM Published 2008-04-02 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2008-04-02
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-189

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.

Affected configurations

• powerdns recursor (<= 3.1.4)

Related

Weakness · not in database (1)

References