Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade dnspython
to version 2.6.1 or higher.
Affected versions of this package are vulnerable to Incorrect Behavior Order in the DNS pre-processing pipeline, which allows an off-path attacker who can spoof the source IP address of a malformed DNS response packet to cause denial of service. The UDP processing functions in query.py
and asyncquery.py
accept the first-arriving packet before closing the receiving socket, allowing the attacker to make the remote nameserver appear unavailable for the target resolver and clients.