A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, indicating it requires adjacent network access but requires specific conditions to be met without requiring user interaction requiring only low-level privileges . The vulnerability impacts limited data confidentiality, limited integrity, and limited availability for affected systems. Impacting 9 products from qemu, from citrix, from redhat and 6 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2018, 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.
2018-07-27T21:29:00.290
2024-11-21T03:01:29.667
Modified
CVSSv3.0: 5.5 (MEDIUM)
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.0
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | qemu | qemu | < 2.9.0 | Yes |
| Application | citrix | xenserver | 6.0.2 | Yes |
| Application | citrix | xenserver | 6.2.0 | Yes |
| Application | citrix | xenserver | 6.5 | Yes |
| Application | citrix | xenserver | 7.0 | Yes |
| Application | citrix | xenserver | 7.1 | Yes |
| Application | redhat | openstack | 5.0 | Yes |
| Application | redhat | openstack | 6.0 | Yes |
| Application | redhat | openstack | 7.0 | Yes |
| Application | redhat | openstack | 8 | Yes |
| Application | redhat | openstack | 9 | Yes |
| Application | redhat | openstack | 10 | Yes |
| Operating System | debian | debian_linux | 7.0 | Yes |
| Operating System | redhat | enterprise_linux_desktop | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_desktop | 7.0 | Yes |
| Operating System | redhat | enterprise_linux_server | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_server | 7.0 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 7.3 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 7.4 | Yes |
| Operating System | redhat | enterprise_linux_server_eus | 7.3 | Yes |
| Operating System | redhat | enterprise_linux_server_eus | 7.4 | Yes |
| Operating System | redhat | enterprise_linux_server_eus | 7.5 | Yes |
| Operating System | redhat | enterprise_linux_workstation | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_workstation | 7.0 | Yes |
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 qemu'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.