CVE-2020-13132

MEDIUM EPSS 46.0%
Published Jul 9, 20205y ago · Modified Jun 17, 20262w ago
4.6 CVSS 3.1
Medium
Find Similar
Published Jul 9, 2020 5y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
4.6
Exploitability
0.9
Impact
3.6
Vector string
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Physical
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
46.0% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-763

Affected Products 3

VendorProductVersionRange
yubicolibykpiv* <2.1.0
yubicopiv_tool_manager* <2.0.0
yubicoyubikey_smart_card_minidriver* ≤4.1.0.172

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.