LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which 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 and bypass ASLR. This attack appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 15 products from libvnc_project, from canonical, from debian and 12 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2019-10-29T19:15:18.127
2024-11-21T04:29:15.050
Modified
CVSSv3.1: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | libvnc_project | libvncserver | < 0.9.12 | Yes |
| Operating System | canonical | ubuntu_linux | 14.04 | Yes |
| Operating System | canonical | ubuntu_linux | 16.04 | Yes |
| Operating System | canonical | ubuntu_linux | 16.04 | Yes |
| Operating System | canonical | ubuntu_linux | 18.04 | Yes |
| Operating System | canonical | ubuntu_linux | 18.10 | Yes |
| Operating System | debian | debian_linux | 8.0 | Yes |
| Operating System | debian | debian_linux | 9.0 | Yes |
| Operating System | siemens | simatic_itc1500_firmware | < 3.2.1.0 | Yes |
| Hardware | siemens | simatic_itc1500 | - | No |
| Operating System | siemens | simatic_itc1500_pro_firmware | < 3.2.1.0 | Yes |
| Hardware | siemens | simatic_itc1500_pro | - | No |
| Operating System | siemens | simatic_itc1900_firmware | < 3.2.1.0 | Yes |
| Hardware | siemens | simatic_itc1900 | - | No |
| Operating System | siemens | simatic_itc1900_pro_firmware | < 3.2.1.0 | Yes |
| Hardware | siemens | simatic_itc1900_pro | - | No |
| Operating System | siemens | simatic_itc2200_firmware | < 3.2.1.0 | Yes |
| Hardware | siemens | simatic_itc2200 | - | No |
| Operating System | siemens | simatic_itc2200_pro_firmware | < 3.2.1.0 | Yes |
| Hardware | siemens | simatic_itc2200_pro | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For libvnc_project's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.