pdns-recursor: perdictable query ids
Published Apr 2, 2008
6.8
MEDIUMCVSS 2.0
EPSS 3.96%
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 products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.96% (0.03964) | 90.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.96% (0.03964) | 89.07th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00027) | 4.67th | v4 (v2025.03.14) |
| Dec 28, 2024 | 1.55% (0.01551) | 86.83th | v3 (v2023.03.01) |
| Dec 12, 2024 | 0.51% (0.00513) | 77.44th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.62% (0.00621) | 78.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.62% (0.00621) | 75.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (22)
- http://doc.powerdns.com/changelog.html x_refsource_CONFIRM
- http://doc.powerdns.com/powerdns-advisory-2008-01.html x_refsource_CONFIRMExploitPatch
- http://lists.opensuse.org/opensuse-security-announce/2008-06/msg00001.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/29584 third-party-advisoryx_refsource_SECUNIAExploitVendor Advisory
- http://secunia.com/advisories/29737 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/29764 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/29830 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/30581 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200804-22.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2008/dsa-1544 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/archive/1/490330/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/28517 vdb-entryx_refsource_BID
- http://www.trusteer.com/docs/PowerDNS_recursor_DNS_Cache_Poisoning.pdf x_refsource_MISCExploit
- http://www.trusteer.com/docs/powerdnsrecursor.html x_refsource_MISCExploit
- http://www.vupen.com/english/advisories/2008/1046/references vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2008-1637 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=440247 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/41534 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2008-1637
- https://www.cve.org/CVERecord?id=CVE-2008-1637
- https://www.redhat.com/archives/fedora-package-announce/2008-April/msg00198.html vendor-advisoryx_refsource_FEDORA
- https://www.redhat.com/archives/fedora-package-announce/2008-April/msg00224.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.