Description (CNA)
FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadow_encoder_inflight_frames() can underflow. An authenticated client can acknowledge a frame id one greater than the last frame sent, causing shadow_encoder_create_frame_id() to divide by zero (SIGFPE) and terminate the process, disconnecting all viewers.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| FreeRDP / FreeRDP | affected 0 before 3.32.0; unaffected 3.32.0 |
CWE
CWE-191
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6vjv-4hm3-6698
- https://www.vulncheck.com/advisories/freerdp-before-3.32.0-shadow-server-divide-by-zero-via-frame-acknowledge-pdu
ADP enrichment
No English description supplied.