SB2021030908 - Red Hat Enterprise Linux 7 update for screen
Published: March 9, 2021
Security Bulletin ID
SB2021030908
Severity
High
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) Improper Neutralization of Argument Delimiters in a Command (CVE-ID: CVE-2021-26937)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to incorrect processing of user-supplied data in the encoding.c file. A remote attacker can pass specially crafted UTF-8 character sequence to the GNU Screen application and perform a denial of service attack or execute arbitrary code on the system.
Remediation
Install update from vendor's website.