CVE-2020-26572 Memory corruption in n/a
A stack-based buffer overflow in the OpenSC TCOS smart card driver allows attackers to execute arbitrary code or cause a denial of service.
- 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-2020-26572?
CVE-2020-26572 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 6 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.
Weakness: CWE-787
Which versions are affected by CVE-2020-26572?
It affects 3 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Opensc Project Opensc.
How do I fix CVE-2020-26572?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-26572 being exploited?
There is no known exploitation of CVE-2020-26572 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-6774, DEBIAN-CVE-2020-26572, GHSA-h2m7-5hj2-cj6c, UBUNTU-CVE-2020-26572.