CVE-2020-13132

MEDIUM

Yubico libykpiv < 2.1.0 - Denial of Service via Incorrect Free in ykpiv_util_generate_key

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://blog.inhq.net/posts/yubico-libykpiv-vuln/

Scores

CVSS v3 4.6
EPSS 0.0064
EPSS Percentile 45.6%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-763
Status published
Products (3)
yubico/libykpiv < 2.1.0
yubico/piv_tool_manager < 2.0.0
yubico/yubikey_smart_card_minidriver < 4.1.0.172
Published Jul 09, 2020
Tracked Since Feb 18, 2026