Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 9 products from qemu, from redhat, from redhat and 6 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2022-09-29T03:15:11.340
2024-11-21T02:01:28.860
Modified
CVSSv3.1: 5.5 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | qemu | qemu | < 2.0.0 | Yes |
| Application | redhat | virtualization | 3.0 | Yes |
| Operating System | redhat | enterprise_linux_desktop | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_eus | 6.5 | Yes |
| Operating System | redhat | enterprise_linux_openstack_platform | 5 | Yes |
| Operating System | redhat | enterprise_linux_server | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 6.5 | Yes |
| Operating System | redhat | enterprise_linux_server_tus | 6.5 | Yes |
| Operating System | redhat | enterprise_linux_workstation | 6.0 | 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.