19 December 2018

KLCERT-18-030: LibVNC Heap Out-of-Bound Write

Vendor

LibVNC

Timeline

Timeline

  • Kaspersky ICS CERT advisory updated

    26 January 2024

  • Kaspersky ICS CERT advisory published

    19 December 2018

  • Vendor releases patch

    October 2018

  • Vulnerability reported

    11 September 2018

Description

LibVNCServer before a 0.9.12 release contains a heap out-of-bound write vulnerability in a structure in VNC client code, which can result in remote code execution.

Exploitability

Remotely

Attack complexity

Low

User interaction

Required

Attack conditions

The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires user connection to the attacker’s VNC server.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code.

Existence of exploit

PoC

Affected products

LibVNCServer before the 0.9.12 release

Mitigation

Vendor mitigation

Update LibVNCServer to the 0.9.12 release or newer.

Kaspersky Lab publishes information on newly identified vulnerabilities in order to raise user awareness of the IT security threats detected. Kaspersky Lab does not make any guarantees in respect of information received from vendors of products in which vulnerabilities have been identified, which is included in the following sections of the advisory: Affected Products, Vendor Mitigation.

Timeline

  • Kaspersky ICS CERT advisory updated

    26 January 2024

  • Kaspersky ICS CERT advisory published

    19 December 2018

  • Vendor releases patch

    October 2018

  • Vulnerability reported

    11 September 2018