CVE-2020-15393 Denial of service in n/a
A memory leak in the Linux kernel USB test driver allows attackers to cause a denial of service by exhausting system memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-15393?
CVE-2020-15393 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 29 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel 4.4 through 5.7.6, usbtest_disconnect in drivers/usb/misc/usbtest.c has a memory leak, aka CID-28ebeb8db770.
Weakness: CWE-401
Which versions are affected by CVE-2020-15393?
It affects 4 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Opensuse Leap.
How do I fix CVE-2020-15393?
Apply the vendor's patch.
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-2020-15393 being exploited?
There is no known exploitation of CVE-2020-15393 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2020-15393, GHSA-8xxx-5jqp-ppj4, UBUNTU-CVE-2020-15393.