CVE-2020-8991 Denial of service in n/a
A memory leak in LVM2's lvmetad daemon could potentially lead to resource exhaustion, though its security impact is disputed.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-8991?
CVE-2020-8991 is a low-severity denial of service vulnerability in n/a, published on 14 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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
Weakness: CWE-401
Which versions are affected by CVE-2020-8991?
It affects 1 product.
Products include Redhat Lvm2.
How do I fix CVE-2020-8991?
No fix published yet.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-8991 being exploited?
There is no known exploitation of CVE-2020-8991 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2020-8991, GHSA-qhfv-hfvw-jqhq.