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.

• CWE-763

• https://blog.inhq.net/posts/yubico-libykpiv-vuln/Exploit, Third Party Advisory
• https://www.yubico.com/support/security-advisories/ysa-2020-02/Vendor Advisory
• https://blog.inhq.net/posts/yubico-libykpiv-vuln/Exploit, Third Party Advisory
• https://www.yubico.com/support/security-advisories/ysa-2020-02/Vendor Advisory

Published

Jul 9, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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