CVSS: 4.6EPSS: 0%CPEs: 3EXPL: 1CVE-2020-13132
https://notcve.org/view.php?id=CVE-2020-13132
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. Se detectó un problema en Yubico libykpiv versiones anteriores a 2.1.0. Un atacante puede desencadenar un free() incorrecto en la función ykpiv_util_generate_key() en la biblioteca lib/util.c por medio de un código de manejo de errores incorrecto. • https://blog.inhq.net/posts/yubico-libykpiv-vuln https://www.yubico.com/support/security-advisories/ysa-2020-02 • CWE-763: Release of Invalid Pointer or Reference •
CVSS: 4.3EPSS: 0%CPEs: 3EXPL: 1CVE-2020-13131
https://notcve.org/view.php?id=CVE-2020-13131
An issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in yubico-piv-tool) does not properly check embedded length fields during device communication. A malicious PIV token can misreport the returned length fields during RSA key generation. This will cause stack memory to be copied into heap allocated memory that gets returned to the caller. The leaked memory could include PINs, passwords, key material, and other sensitive information depending on the integration. During further processing by the caller, this information could leak across trust boundaries. • https://blog.inhq.net/posts/yubico-libykpiv-vuln https://www.yubico.com/products/services-software/download/smart-card-drivers-tools • CWE-125: Out-of-bounds Read •