UltraVNC revision 1211 has multiple improper null termination vulnerabilities in VNC server code, which result in out-of-bound data being accessed by remote users. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.
UltraVNC, en su revisión 1211, tiene múltiples vulnerabilidades de terminación nulo en el código del servidor VNC, lo que podría resultar en un acceso de datos fuera de límites por parte de usuarios remotos. Este ataque parece ser explotable mediante la conectividad de red. Se han solucionado estas vulnerabilidades en la revisión 1212.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | HIGH |
| Availability Impact | HIGH |
AV:N/AC:L/Au:N/C:P/I:P/A:P
| Access Vector | NETWORK |
|---|---|
| Access Complexity | LOW |
| Authentication | NONE |
| Confidentiality Impact | PARTIAL |
| Integrity Impact | PARTIAL |
| Availability Impact | PARTIAL |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-170
|
| [email protected] | Primary |
en
NVD-CWE-Other
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| uvnc | ultravnc | * | <built-in method update of dict object at 0x7e60bac6cf00> | Application |
| siemens | sinumerik_access_mymachine\/p2p | * | <built-in method update of dict object at 0x7e60e86cfbc0> | Application |
| siemens | sinumerik_pcu_base_win10_software\/ipc | * | <built-in method update of dict object at 0x7e60e86cd180> | Application |
| siemens | sinumerik_pcu_base_win7_software\/ipc | * | <built-in method update of dict object at 0x7e60bac6d900> | 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:*:*:*:*:*:*:*:* |