PT-2020-13348 · Yubico · Libykpiv

Christian Reitter · Published 2020-07-09 · Updated 2021-07-21 · CVE-2020-13132

Positive Technologies (AI Summary)

CVSS v3.1

4.6

Medium

Base vector

AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Yubico libykpiv versions prior to 2.1.0

Description An issue was discovered in the ykpiv util generate key() function in lib/util.c, where incorrect error handling code can trigger an incorrect free(). This could be used to cause a denial of service attack.

Recommendations For versions prior to 2.1.0, update to version 2.1.0 or later to resolve the issue. As a temporary workaround, consider restricting the use of the ykpiv util generate key() function until a patch is available.

Exploit

Fix

Weakness Enumeration

CWE-763

Related Identifiers

CVE-2020-13132

Affected Products

Libykpiv

References · 10

• 🔥 https://blog.inhq.net/posts/yubico-libykpiv-vuln · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-13132 · Vendor Advisory
• https://yubico.com/support/security-advisories/ysa-2020-02 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-13132 · Security Note
• https://cve.org/CVERecord?id=CVE-2020-13132 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-13132 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-13132 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-13132 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-13132 · Vendor Advisory
• https://t.me/cvenotify/4954 · Telegram Post