KLCERT-18-029: LibVNC Multiple Heap Out-of-Bound Vulnerabilities

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Advisories
KLCERT-18-029: LibVNC Multiple Heap Out-of-Bound Vulnerabilities

19 December 2018

Vendor

LibVNC

CVE-IDS

2018-20019
KLCERT

KLCERT-18-029

Timeline

Kaspersky ICS CERT advisory published

19 December 2018
Vendor releases patch

September 2018
Vulnerabilities reported

August 2018

Description

LibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f contains multiple heap out-of-bound write vulnerabilities in VNC client code, which can result in remote code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in a83439b9fbe0f03c48eb94ed05729cb016f8b72f and later.

CVSS v3

0.0

(CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)

Exploitability

Remotely

Attack complexity

Low

User interaction

None

Impact

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

Existence of exploit

Unknown

Affected products

LibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f

Mitigation

Vendor mitigation

Update LibVNC to 0.9.12

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 published

19 December 2018
Vendor releases patch

September 2018
Vulnerabilities reported

August 2018