Medium severity · published Jul 9, 2020
CVE-2020-13132
An issue was discovered in Yubico libykpiv before 2.1.0
4.6
CVSS
0.6%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libykpiv · Yubico
before 2.1.0 · source: NVD
PT
Piv Tool Manager · Yubico
before 2.0.0 · source: NVD
YS
Yubikey Smart Card Minidriver · Yubico
through 4.1.0.172 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-13132
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-13132
Exploit
https://blog.inhq.net/posts/yubico-libykpiv-vuln/
Vendor Advisory
https://www.yubico.com/support/security-advisories/ysa-2020-02/
More from Libykpiv
4.3
CVE-2020-13131
An issue was discovered in Yubico libykpiv before 2.1.0