CVE-2020-8991

Publication date 14 February 2020

Last updated 4 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

vg_lookup in daemons/lvmetad/lvmetad-core.c in LVM2 2.02 mismanages memory, leading to an lvmetad memory leak, as demonstrated by running pvs. NOTE: RedHat disputes CVE-2020-8991 as not being a vulnerability since there’s no apparent route to either privilege escalation or to denial of service through the bug

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
lvm2	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

mdeslaur

This CVE is disputed, not a security issue, marking as not-affected.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
lvm2	Upstream: https://sourceware.org/git/?p=lvm2.git;a=commit;h=bcf9556b8fcd16ad8997f80cc92785f295c66701

Severity score breakdown

CVSS version: CVSS v3.0

Base score 2.3 · Low

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	Low

Scores

Parameter	Value
Base score	2.3 · Low
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

References

Other references

https://www.cve.org/CVERecord?id=CVE-2020-8991