CVE-2025-59348
Dragonfly incorrectly handles a task structure’s usedTraffic field
- State
- Published
- Severity
- 5.5 Medium
- Published
- Sep 17, 2025
- Updated
- Sep 17, 2025
- Reserved
- Sep 12, 2025
Description
Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the processPieceFromSource method does not update the structure’s usedTraffic field, because an uninitialized variable n is used as a guard to the AddTraffic method call, instead of the result.Size variable. A task is processed by a peer. The usedTraffic metadata is not updated during the processing. Rate limiting is incorrectly applied, leading to a denial-of-service condition for the peer. This vulnerability is fixed in 2.1.0.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.5 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | GitHub_M |
Weaknesses
- CWE-457 Use of Uninitialized Variable
Affected Products
| Product | Versions |
|---|---|
dragonflydragonflyoss |
|
References
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