19 December 2018

KLCERT-18-033: LibVNC Memory leak

Vendor

LibVNC

Timeline

Timeline

  • Kaspersky ICS CERT advisory updated

    02 November 2023

  • Kaspersky ICS CERT advisory published

    19 December 2018

  • Vendor releases patch

    September 2018

  • Vulnerability reported

    11 September 2018

Description

LibVNCServer before 0.9.12 release contains CWE-665: Improper Initialization vulnerability in VNC Repeater client code, which could allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and bypass ASLR.

CWE

CWE-665: Improper Initialization

CVSS v3

0.0

 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C)

Exploitability

Remotely exploitable, network access is required

Attack complexity

Low

Privilege required

No privileges are required

User interaction

Required

Impact

Successful exploitation of this vulnerability could allow an attacker to cause information disclosure and expand attack vectors.

Existence of exploit

PoC

Affected products

LibVNCServer before 0.9.12 release

Mitigation

Update LibVNCServer to 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.

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Timeline

  • Kaspersky ICS CERT advisory updated

    02 November 2023

  • Kaspersky ICS CERT advisory published

    19 December 2018

  • Vendor releases patch

    September 2018

  • Vulnerability reported

    11 September 2018

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