SB2019102232 - OS Command Injection in pacman (Alpine package)
Published: October 22, 2019
Security Bulletin ID
SB2019102232
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) OS Command Injection (CVE-ID: CVE-2019-18182)
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation within the the download_with_xfercommand() function in src/pacman/conf.c file in pacman. A remote attacker can trick the victim to enable a non-default XferCommand to retrieve an attacker-controlled crafted database and package and execute arbitrary OS commands on the system with privileges of the current user.
Remediation
Install update from vendor's website.