CVE-2008-4099
CVE-2008-4099 is a medium-severity vulnerability in Debian Python-dns with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-16.
Key facts
- Severity: Medium (CVSS 2.0 base score 6.4)
- EPSS exploit prediction: 2% (81st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-16
- Affected product: Debian Python-dns
- Published:
- Last modified:
Description
PyDNS (aka python-dns) before 2.3.1-4 in Debian GNU/Linux does not use random source ports or transaction IDs for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than CVE-2008-1447.
Frequently asked questions
- What is CVE-2008-4099?
- PyDNS (aka python-dns) before 2.3.1-4 in Debian GNU/Linux does not use random source ports or transaction IDs for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than CVE-2008-1447.
- How severe is CVE-2008-4099?
- CVE-2008-4099 has a CVSS 2.0 base score of 6.4, rated medium severity.
- Is CVE-2008-4099 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2008-4099?
- CVE-2008-4099 primarily affects Debian Python-dns. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2008-4099?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2008-4099 published?
- CVE-2008-4099 was published on 2008-09-18 and last updated on 2026-06-16.
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=490217
- http://packages.debian.org/changelogs/pool/main/p/python-dns/python-dns_2.3.3-1/changelog
- http://www.openwall.com/lists/oss-security/2008/09/11/1
- http://www.openwall.com/lists/oss-security/2008/09/16/4
Affected products (10)
- cpe:2.3:a:debian:python-dns:*:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.0-1:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.0-2:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.0-3:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.0-4:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.0-5:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.0-5.1:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.0-6:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.1-1:*:*:*:*:*:*:*
- cpe:2.3:a:debian:python-dns:2.3.1-2:*:*:*:*:*:*:*
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