LibVNCServer.Tight.File.Transfer.Extension.Use.After.Free

description-logoDescription

This indicates an attack attempt to exploit a Use After Free vulnerability in LibVNCServer.
The vulnerability is due to insufficient validation when the software handles a Tight File Extension file transfer request. A remote attacker may be able to exploit this to execute arbitrary code within the context of the VNC server via crafted packets.

affected-products-logoAffected Products

LibVNCServer Development Team LibVNCServer prior to commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b

Impact logoImpact

System Compromise: Remote attackers can gain control of vulnerable systems.

recomended-action-logoRecommended Actions

Apply patch available from the vendor:
https://github.com/LibVNC/libvncserver/commit/ca2a5ac02fbbadd0a21fabba779c1ea69173d10b

Telemetry logoTelemetry

Coverage

IPS (Regular DB)
IPS (Extended DB)

Version Updates

Date Version Detail
2019-03-13 14.572 Default_action:pass:drop
2019-02-13 14.552