CVE-2007-6740: pyftpdlib vulnerable to allocation of resources without limits

May 1, 2022 (updated October 21, 2024)

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

References

github.com/advisories/GHSA-cx59-cp6c-9fr8
github.com/giampaolo/pyftpdlib
github.com/giampaolo/pyftpdlib/issues/25
github.com/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-24.yaml
nvd.nist.gov/vuln/detail/CVE-2007-6740

Code Behaviors & Features

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