python-pydns uses insecure DNS source ports
Published Sep 18, 2008
6.4
MEDIUMCVSS 2.0
EPSS 2.19%
Description
PyDNS (aka python-dns) before 2.3.1-5 in Debian GNU/Linux does not use random source ports for DNS requests and does not use random transaction IDs for DNS retries, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than CVE-2008-1447. NOTE: this vulnerability exists because of an incomplete fix for CVE-2008-4099.
Affected products
No data.
- ≤ 2.3.1-4
- 2.3.0-1
- 2.3.0-2
- 2.3.0-3
- 2.3.0-4
- 2.3.0-5
- 2.3.0-5.1
- 2.3.0-6
- 2.3.1-1
- 2.3.1-2
- 2.3.1-3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
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:L/Au:N/C:N/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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.19% (0.02194) | 81.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.19% (0.02194) | 80.08th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.71% (0.00712) | 70.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.88% (0.00882) | 83.21th | v3 (v2023.03.01) |
| May 24, 2024 | 0.53% (0.00530) | 76.99th | v3 (v2023.03.01) |
| May 10, 2024 | 0.45% (0.00445) | 74.82th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.38% (0.00376) | 72.51th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.27% (0.00272) | 67.17th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.25% (0.00246) | 63.68th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.88% (0.00882) | 80.03th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (8)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=490217 x_refsource_CONFIRM
- http://packages.debian.org/changelogs/pool/main/p/python-dns/python-dns_2.3.3-1/changelog x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2008/09/11/1 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2008/09/16/4 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2008-4126 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=462773 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2008-4126
- https://www.cve.org/CVERecord?id=CVE-2008-4126
| Link | Providers | Tags |
|---|---|---|
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=490217 | x_refsource_CONFIRM | |
| http://packages.debian.org/changelogs/pool/main/p/python-dns/python-dns_2.3.3-1/changelog | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2008/09/11/1 | mailing-listx_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2008/09/16/4 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2008-4126 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=462773 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2008-4126 | ||
| https://www.cve.org/CVERecord?id=CVE-2008-4126 |
Change history (0)
No recorded changes yet.