CVE-2020-13132
CVE-2020-13132 is a medium-severity vulnerability in Yubico Libykpiv with a CVSS 3.x base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-763.
Key facts
- Severity: Medium (CVSS 3.x base score 4.6)
- CVSS v2: 2.1
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-763
- Affected product: Yubico Libykpiv
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2020-13132?
- CVE-2020-13132 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-13132 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-13132?
- CVE-2020-13132 primarily affects Yubico Libykpiv. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-13132?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-13132 published?
- CVE-2020-13132 was published on 2020-07-09 and last updated on 2026-06-17.
References
- https://blog.inhq.net/posts/yubico-libykpiv-vuln/
- https://www.yubico.com/support/security-advisories/ysa-2020-02/
Affected products (3)
- cpe:2.3:a:yubico:libykpiv:*:*:*:*:*:*:*:*
- cpe:2.3:a:yubico:piv_tool_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:yubico:yubikey_smart_card_minidriver:*:*:*:*:*:*:*:*
More vulnerabilities in Yubico Libykpiv
- CVE-2020-13131 — Medium (CVSS 4.3): An issue was discovered in Yubico libykpiv before 2.1.0. lib/util.c in this library (which is included in…
All CVEs affecting Yubico Libykpiv →
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