SB2020042930 - Double Free in OpenSC
Published: April 29, 2020 Updated: August 8, 2020
Security Bulletin ID
SB2020042930
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Double Free (CVE-ID: CVE-2019-20792)
CWE-ID: CWE-415 - Double Free
CVSSv4: 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:Green
The vulnerability allows a local non-authenticated attacker to execute arbitrary code.
OpenSC before 0.20.0 has a double free in coolkey_free_private_data because coolkey_add_object in libopensc/card-coolkey.c lacks a uniqueness check.
Remediation
Install update from vendor's website.