CVE-2008-1637

Summary

CVECVE-2008-1637
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2008-04-02 17:44:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionPowerDNS 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.

Risk And Classification

Primary CVSS: v2.0 6.8 from [email protected]

AV:N/AC:M/Au:N/C:P/I:P/A:P

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:M/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Powerdns Recursor All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
Debian update for pdns-recursor - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
IBM Security Trusteer Fraud Protection Software | IBM af854a3a-2127-422b-91ae-364da2661108 www.trusteer.com Exploit
PowerDNS Recursor DNS Cache Poisoning | Trusteer af854a3a-2127-422b-91ae-364da2661108 www.trusteer.com Exploit
PowerDNS Remote Cache Poisoning Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Gentoo update for pdns-recursor - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
[SECURITY] Fedora 8 Update: pdns-recursor-3.1.5-1.fc8 af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
SecurityFocus af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
PowerDNS Recursor: DNS Cache Poisoning — Gentoo Linux Documentation af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
PowerDNS Security Advisory 2008-01: System random generator can be predicted, leading to the potential to 'spoof' PowerDNS Recursor af854a3a-2127-422b-91ae-364da2661108 doc.powerdns.com Exploit, Patch
Fedora update for pdns-recursor - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
[security-announce] SUSE Security Summary Report SUSE-SR:2008:012 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
PowerDNS Recursor DNS Cache Poisoning Vulnerability - Advisories - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Exploit, Vendor Advisory
SUSE Update for Multiple Packages - Secunia Advisories - Vulnerability Intelligence - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
3. Release notes af854a3a-2127-422b-91ae-364da2661108 doc.powerdns.com
[SECURITY] Fedora 7 Update: pdns-recursor-3.1.5-1.fc7 af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
Debian -- Security Information -- DSA-1544-1 pdns-recursor af854a3a-2127-422b-91ae-364da2661108 www.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report