CVE-2020-12430 Denial of service in n/a
Unprivileged users can cause a memory leak in libvirt's domstats command, leading to potential denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-12430?
CVE-2020-12430 is a medium-severity denial of service vulnerability in Redhat Enterprise Linux, published on 28 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in qemuDomainGetStatsIOThread in qemu/qemu_driver.c in libvirt 4.10.0 though 6.x before 6.1.0. A memory leak was found in the virDomainListGetStats libvirt API that is responsible for retrieving domain statistics when managing QEMU guests. This flaw allows unprivileged users with a read-only connection to cause a memory leak in the domstats command, resulting in a potential denial of service.
Weakness: CWE-401
Which versions are affected by CVE-2020-12430?
It affects 2 products.
Products include Redhat Enterprise Linux, Redhat Libvirt.
How do I fix CVE-2020-12430?
Upgrade to a fixed version.
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-2020-12430 being exploited?
There is no known exploitation of CVE-2020-12430 in the wild and no public exploit code.
Other vulnerabilities in Redhat Enterprise Linux
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- CVE-2021-20325 Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securit
- CVE-2018-25011 Memory corruption in libwebp
- CVE-2018-25014 Other in libwebp
- CVE-2014-3585 Supply chain in redhat-upgrade-tool
Sources
Also known as ALPINE-CVE-2020-12430, DEBIAN-CVE-2020-12430, GHSA-mm94-82mx-j73h, UBUNTU-CVE-2020-12430.