01 марта 2019

KLCERT-19-013: UltraVNC Access of Memory Location After End of Buffer

Vendor

UltraVNC

Timeline

Timeline

  • Kaspersky ICS CERT advisory published

    01 марта 2019

  • Advisory published

    марта 2019

  • Vendor releases patch

    февраля 2019

  • Vulnerabilities reported

    января 2019

Description

UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client code, which can potentially result code execution. This attack appear to be exploitable via network connectivity. User interaction is required to trigger these vulnerabilities. These vulnerabilities have been fixed in revision 1208.

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

UltraVNC before 1.2.2.3

Mitigation

Vendor mitigation

Update UltraVNC to revision 1208

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

    01 марта 2019

  • Advisory published

    марта 2019

  • Vendor releases patch

    февраля 2019

  • Vulnerabilities reported

    января 2019

Вернуться к началу
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