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Linux Distros Unpatched Vulnerability : CVE-2020-8991

low Nessus Plugin ID 223585

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - 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 (CVE-2020-8991)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2020-8991

Plugin Details

Severity: Low

ID: 223585

File Name: unpatched_CVE_2020_8991.nasl

Version: 1.4

Type: local

Agent: unix

Family: Misc.

Published: 3/4/2025

Updated: 9/4/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2020-8991

CVSS v3

Risk Factor: Low

Base Score: 2.3

Temporal Score: 2

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:device-mapper-event-libs, p-cpe:/a:redhat:enterprise_linux:lvm2-sysvinit, p-cpe:/a:centos:centos:lvm2-python-boom, p-cpe:/a:redhat:enterprise_linux:device-mapper-event-devel, p-cpe:/a:redhat:enterprise_linux:lvm2-lockd, p-cpe:/a:redhat:enterprise_linux:lvm2-python-boom, p-cpe:/a:centos:centos:lvm2, p-cpe:/a:redhat:enterprise_linux:lvm2, p-cpe:/a:redhat:enterprise_linux:lvm2-cluster, p-cpe:/a:centos:centos:device-mapper-libs, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:lvm2-libs, p-cpe:/a:redhat:enterprise_linux:device-mapper-devel, p-cpe:/a:centos:centos:lvm2-cluster, p-cpe:/a:redhat:enterprise_linux:lvm2-devel, p-cpe:/a:redhat:enterprise_linux:cmirror, p-cpe:/a:centos:centos:device-mapper, p-cpe:/a:redhat:enterprise_linux:device-mapper, p-cpe:/a:redhat:enterprise_linux:device-mapper-libs, p-cpe:/a:centos:centos:lvm2-libs, p-cpe:/a:centos:centos:lvm2-python-libs, p-cpe:/a:centos:centos:lvm2-lockd, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:lvm2-python-libs, p-cpe:/a:centos:centos:cmirror, p-cpe:/a:centos:centos:device-mapper-event-devel, p-cpe:/a:centos:centos:lvm2-sysvinit, p-cpe:/a:redhat:enterprise_linux:device-mapper-event, p-cpe:/a:centos:centos:lvm2-devel, p-cpe:/a:redhat:enterprise_linux:device-mapper-event-libs, p-cpe:/a:centos:centos:device-mapper-devel, p-cpe:/a:centos:centos:device-mapper-event

Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2/14/2020

Reference Information

CVE: CVE-2020-8991