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Vulnerability DatabaseCVE-2025-59348
CVE-2025-59348:
vulnerability analysis and mitigation
Overview
Dragonfly, an open source P2P-based file distribution and image acceleration system, was found to contain a vulnerability (CVE-2025-59348) prior to version 2.1.0. The vulnerability was discovered in the processPieceFromSource method where the structure's usedTraffic field was not being properly updated due to an uninitialized variable being used as a guard condition (GitHub Advisory).
Technical details
The vulnerability exists in the processPieceFromSource method where an uninitialized variable 'n' is used as a guard to the AddTraffic method call, instead of the result.Size variable. This implementation error prevents the proper updating of the usedTraffic field in the Task structure during data processing (GitHub Advisory).
Impact
When a task is processed by a peer, the usedTraffic metadata is not updated during the processing. This leads to incorrect application of rate limiting, which can result in a denial-of-service condition for the peer (GitHub Advisory).
Mitigation and workarounds
The vulnerability has been fixed in Dragonfly version 2.1.0 and above. There are no effective workarounds available beyond upgrading to the patched version (GitHub Advisory).
Additional resources
Source: This report was generated using AI
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