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KLCERT-20-009: Remote Code Execution on LibVNC version prior to 0.9.12

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CVE-IDS CVE-2019-15690
Publication date 2020.03.23
Researcher Pavel Cheremushkin, Kaspersky ICS CERT
Description LibVNC client code contains heap buffer overflow vulnerability in commit prior to 6073771eed1caf72f196e410182471e0dfd32149. This could possible result into remote code execution. This attack appear to be exploitable via network connectivity. The issue has been fixed in commit 54220248886b5001fbbb9fa73c4e1a2cb9413fed.
Impact Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code.
CVSS v3 Base Score: 8.8
Exploitability Remotely
Difficulty Low
User interaction None
Existence of exploit Unknown
Affected products
Affected products LibVNC client commit prior to 6073771eed1caf72f196e410182471e0dfd32149
Vendor mitigation Update current version of LibVNC client.
Timeline Dec 2019 – Vulnerabilities reported
Dec 2019 – Vendor releases patch
Dec 2019 – Advisory published