Unrated severityNVD Advisory· Published Apr 2, 2008· Updated Jun 16, 2026
CVE-2008-1637
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
18- doc.powerdns.com/powerdns-advisory-2008-01.htmlnvdExploitPatch
- secunia.com/advisories/29584nvdExploitVendor Advisory
- www.trusteer.com/docs/PowerDNS_recursor_DNS_Cache_Poisoning.pdfnvdExploit
- www.trusteer.com/docs/powerdnsrecursor.htmlnvdExploit
- doc.powerdns.com/changelog.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2008-06/msg00001.htmlnvd
- secunia.com/advisories/29737nvd
- secunia.com/advisories/29764nvd
- secunia.com/advisories/29830nvd
- secunia.com/advisories/30581nvd
- security.gentoo.org/glsa/glsa-200804-22.xmlnvd
- www.debian.org/security/2008/dsa-1544nvd
- www.securityfocus.com/archive/1/490330/100/0/threadednvd
- www.securityfocus.com/bid/28517nvd
- www.vupen.com/english/advisories/2008/1046/referencesnvd
- exchange.xforce.ibmcloud.com/vulnerabilities/41534nvd
- www.redhat.com/archives/fedora-package-announce/2008-April/msg00198.htmlnvd
- www.redhat.com/archives/fedora-package-announce/2008-April/msg00224.htmlnvd
News mentions
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