VulnerabilityModified
CVE-2020-13132
An attacker can trigger an incorrect free() in the ykpiv_util_generate_key() function in lib/util.c through incorrect error handling code.
MEDIUM 4.6EPSS 0.64%
Does this matter?
Lower severity and a low EPSS score (0.64%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 4.6 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.64% probability · 49th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-763
- Affected
- yubico/libykpiv · yubico/piv tool manager · yubico/yubikey smart card minidriver
- Source
- cve@mitre.org
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.