Buffer overflow in OpenSC - CVE-2019-19481
Published: December 30, 2019
Vulnerability identifier: #VU23847
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-19481
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: OpenSC
Affected software:
OpenSC
OpenSC
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing CAC certificates in libopensc/card-cac1.c. A local user can pass specially crafted certificate to the application, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-19481
Install updates from vendor's website.