SB2020120728 - Red Hat Enterprise Linux 7.3 Advanced Update Support update for ksh
Published: December 7, 2020
Security Bulletin ID
SB2020120728
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) OS Command Injection (CVE-ID: CVE-2019-14868)
The vulnerability allows a local user to execute arbitrary shell commands on the target system.
The vulnerability exists in the way ksh evaluates certain environment variables . A local user can set a specially crafted environment variable and execute arbitrary OS commands on the target system.
Remediation
Install update from vendor's website.