SB2020082007 - Red Hat Enterprise Linux 7 update for bash
Published: August 20, 2020
Security Bulletin ID
SB2020082007
CSH 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 vulnerability.
1) Input validation error (CVE-ID: CVE-2019-9924)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to "rbash" does not prevent the shell user from modifying BASH_CMDS. A local authenticate user can execute any command with the permissions of the shell.
Remediation
Install update from vendor's website.