UltraVNC revision 1206 has stack-based Buffer overflow vulnerability in VNC client code inside FileTransfer module, which leads to a denial of service (DoS) condition. This attack appear to be exploitable via network connectivity. This vulnerability has been fixed in revision 1207.
UltraVNC, en su revisión 1206, tiene un desbordamiento de búfer basado en pila en el código del cliente VNC dentro del módulo "FileTransfer", lo cual conduce a una condición de denegación de servicio (DoS). Este ataque parece ser explotable mediante la conectividad de red. Esta vulnerabilidad se ha solucionado en la revisión 1207.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
AV:N/AC:L/Au:N/C:N/I:N/A:P
| Access Vector | NETWORK |
|---|---|
| Access Complexity | LOW |
| Authentication | NONE |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | PARTIAL |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-121
|
| [email protected] | Primary |
en
CWE-787
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| uvnc | ultravnc | * | <built-in method update of dict object at 0x7e60bbd618c0> | Application |
| siemens | sinumerik_access_mymachine\/p2p | * | <built-in method update of dict object at 0x7e60b847afc0> | Application |
| siemens | sinumerik_pcu_base_win10_software\/ipc | * | <built-in method update of dict object at 0x7e60b847aa80> | Application |
| siemens | sinumerik_pcu_base_win7_software\/ipc | * | <built-in method update of dict object at 0x7e60bbd601c0> | Application |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:siemens:sinumerik_access_mymachine\/p2p:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:siemens:sinumerik_pcu_base_win10_software\/ipc:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:siemens:sinumerik_pcu_base_win7_software\/ipc:*:*:*:*:*:*:*:* |