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CVE-2008-4126: PyDNS (aka python-dns) before 2.3.1-5 in Debian GNU/Linux does not use random source ports for DNS requests...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This affects Debian's PyDNS/python-dns package before 2.3.1-5. DNS requests and retry transaction IDs were predictable, making spoofed DNS answers easier. A successful spoof could steer an application toward the wrong host. The sources do not provide CVSS, broad impact detail, or evidence of active exploitation. Exposure is most likely on older Debian systems or legacy applications that still use python-dns/PyDNS before 2.3.1-5 for DNS resolution. The supplied affected-product metadata is incomplete. Treat as a legacy dependency risk. It is not KEV-listed in the provided data, but DNS spoofing can undermine trust decisions. Prioritize remediation where old Debian systems support security-sensitive applications. Mitigation focus: Inventory Debian hosts and applications using PyDNS/python-dns.; Upgrade python-dns to a Debian-fixed version, where applicable.; Check Debian changelog and bug guidance for package-specific remediation..

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Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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