19 December 2018

KLCERT-18-031: LibVNC Infinite Loop

Vendor

LibVNC

Timeline

Timeline

  • Kaspersky ICS CERT advisory published

    19 December 2018

  • Vendor releases patch

    September 2018

  • Vulnerability reported

    September 2018

Description

LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite Loop vulnerability in VNC client code. The vulnerability could allow an attacker to consume an excessive amount of resources, such as CPU and RAM. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c and later.

CVSS v3

0.0

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

Exploitability

Remotely

Attack complexity

Low

User interaction

None

Impact

Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition.

Existence of exploit

Unknown

Affected products

LibVNC before commit 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838

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.

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Timeline

  • Kaspersky ICS CERT advisory published

    19 December 2018

  • Vendor releases patch

    September 2018

  • Vulnerability reported

    September 2018

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