Description
A use-after-free issue could be triggered remotely in the SFTP component of PSFTPd 10.0.4 Build 729. This issue could be triggered prior to authentication. The PSFTPd server did not automatically restart, which enabled attackers to perform a very effective DoS attack against this service. By sending a crafted SSH identification / version string to the server, a NULL pointer dereference could be caused, apparently because of a race condition in the window message handling, performing the cleanup for invalid connections. This incorrect cleanup code has a use-after-free.
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Remediation
No vendor fix or workaround currently provided.
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Tracking
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Advisories
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References
History
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T19:50:16.444Z
Reserved: 2017-10-11T00:00:00.000Z
Link: CVE-2017-15271
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Status : Modified
Published: 2017-11-15T16:29:00.373
Modified: 2026-05-13T00:24:29.033
Link: CVE-2017-15271
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OpenCVE Enrichment
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Weaknesses