SB2018111936 - Double-free error in opensc (Alpine package)
Published: November 19, 2018
Security Bulletin ID
SB2018111936
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Double-free error (CVE-ID: CVE-2018-16423)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to double-free error when handling responses from a smartcard in sc_file_set_sec_attr in libopensc/sc.c. A remote unauthenticated attacker can supply specially crafted smartcards, trigger memory corruption and cause the application to crash.
Remediation
Install update from vendor's website.