lvm2: memory leak in vg_lookup in daemons/lvmetad/lvmetad-core.c
Published Feb 14, 2020
2.3
LOWCVSS 3.1
EPSS 0.33%
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
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
lvm2
Out of support scope
Red Hat Enterprise Linux 6
lvm2
Out of support scope
Red Hat Enterprise Linux 7
lvm2
Fix deferred
Red Hat Enterprise Linux 8
lvm2
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | lvm2 | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | lvm2 | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | lvm2 | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | lvm2 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The lvm2 package as shipped with Red Hat Enterprise Linux 8 is not affected as it doesn't contains the affected component (lvmetad).
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Apr 29, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.33% (0.00328) | 23.66th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.33% (0.00328) | 26.16th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.04% (0.00044) | 12.95th | v3 (v2023.03.01) |
| May 25, 2024 | 0.04% (0.00044) | 12.27th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Jan 6, 2022 | 2.28% (0.02283) | 51.78th | v1 |
| Jan 5, 2022 | 0.52% (0.00518) | 31.20th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.52% (0.00518) | 0.00th | v1 |
References (5)
- https://access.redhat.com/security/cve/CVE-2020-8991 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1805922 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2020-8991
- https://sourceware.org/git/?p=lvm2.git%3Ba=commit%3Bh=bcf9556b8fcd16ad8997f80cc92785f295c66701 x_refsource_MISC
- https://www.cve.org/CVERecord?id=CVE-2020-8991
Change history (0)
No recorded changes yet.