CVE-2018-1062 : Vulnerability Insights and Analysis
Discover the security flaw in oVirt 4.1.x before version 4.1.9 that could expose sensitive data. Learn about the impact, affected systems, exploitation mechanism, and mitigation steps.
A security flaw in oVirt 4.1.x before version 4.1.9 could lead to incomplete zeroing of virtual machine disks, potentially exposing sensitive data.
Understanding CVE-2018-1062
What is CVE-2018-1062?
A vulnerability in oVirt's Enable Discard and Wipe After Delete flags could result in incomplete zeroing of virtual machine disks upon removal, potentially exposing sensitive data.
The Impact of CVE-2018-1062
The vulnerability could allow privileged users of a virtual machine to access sensitive data if storage blocks are reallocated to another virtual machine.
Technical Details of CVE-2018-1062
Vulnerability Description
The combination of Enable Discard and Wipe After Delete flags in oVirt 4.1.x before 4.1.9 could lead to incomplete zeroing of disks, posing a data exposure risk.
Affected Systems and Versions
- Product: oVirt
- Vendor: oVirt
- Versions Affected: 4.1.x before 4.1.9
Exploitation Mechanism
The vulnerability arises when storage blocks from removed disks are later assigned to different disks in another virtual machine, potentially exposing sensitive data.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to version 4.1.9 or later to mitigate the vulnerability.
- Monitor and restrict access to potentially sensitive data.
Long-Term Security Practices
- Regularly update and patch oVirt installations to address security vulnerabilities.
- Implement access controls to limit privileged user access to sensitive data.
Patching and Updates
Apply patches and updates provided by oVirt to ensure the security of virtual machine disk management.