CVE-2020-13132 Use after free in n/a
An attacker can trigger a denial of service in the Yubico libykpiv library via incorrect error handling leading to an invalid free operation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-13132?
CVE-2020-13132 is a medium-severity use after free vulnerability in n/a, published on 9 Jul 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An issue was discovered in Yubico libykpiv before 2.1.0. An attacker can trigger an incorrect free() in the ykpiv_util_generate_key() function in lib/util.c through incorrect error handling code. This could be used to cause a denial of service attack.
Weakness: CWE-763
Which versions are affected by CVE-2020-13132?
It affects 3 products.
Products include Yubico Libykpiv, Yubico Piv Tool Manager, Yubico Yubikey Smart Card Minidriver.
How do I fix CVE-2020-13132?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2020-13132 being exploited?
There is no known exploitation of CVE-2020-13132 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2020-13132, GHSA-mg7w-vxv4-393q, UBUNTU-CVE-2020-13132.