CVE-2020-8991 Explained : Impact and Mitigation

LVM2 2.02 mismanages memory in vg_lookup in daemons/lvmetad/lvmetad-core.c, causing an lvmetad memory leak. The vulnerability is disputed by RedHat as it does not lead to privilege escalation or denial of service.

Understanding CVE-2020-8991

This CVE involves a memory management issue in LVM2 2.02 that results in a memory leak in the lvmetad component.

What is CVE-2020-8991?

The vulnerability is related to the vg_lookup function in LVM2 2.02.
It leads to a memory leak in the lvmetad component.
RedHat disputes this CVE as it does not pose a risk of privilege escalation or denial of service.

The Impact of CVE-2020-8991

The vulnerability could potentially cause a memory leak in the lvmetad component.
RedHat argues that there is no apparent route to privilege escalation or denial of service through this bug.

Technical Details of CVE-2020-8991

This section provides more technical insights into the vulnerability.

Vulnerability Description

vg_lookup in daemons/lvmetad/lvmetad-core.c in LVM2 2.02 mismanages memory, leading to an lvmetad memory leak.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Version: N/A

Exploitation Mechanism

The vulnerability can be triggered by running the 'pvs' command.

Mitigation and Prevention

Protecting systems from the CVE and preventing potential exploitation.

Immediate Steps to Take

Monitor for any abnormal memory usage in the lvmetad component.
Regularly check for updates or patches related to LVM2.

Long-Term Security Practices

Implement secure coding practices to prevent memory management issues.
Conduct regular security audits to identify and address vulnerabilities.

Patching and Updates

Stay informed about patches or updates released by the LVM2 project to address this vulnerability.