SB2019123148 - Use-after-free in opensc (Alpine package)
Published: December 31, 2019
Security Bulletin ID
SB2019123148
Severity
Low
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 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2019-19480)
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the sc_pkcs15_decode_prkdf_entry() function in libopensc/pkcs15-prkey.c. A local user can pass specially crafted data to the application, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.