SB2018022111 - Privilege escalation in GNU Sharutils
Published: February 21, 2018
Security Bulletin ID
SB2018022111
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2018-1000097)
The vulnerability allows a local unauthenticated attacker to gain elevated privileges on the target system.
The weakness exists in the looks_like_c_code function due to insufficient validation of user-supplied input. A local attacker can send a specially crafted file, trick the victim into running an unshar command, trigger buffer overflow and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.