SB2019050612 - Ubuntu update for Sudo
Published: May 6, 2019 Updated: December 8, 2025
Security Bulletin ID
SB2019050612
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Incomplete List of Disallowed Inputs (CVE-ID: CVE-2016-7076)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incomplete list of disallowed inputs for the sudo noexec restriction if application run via sudo executed wordexp() C library function with a user supplied argument. A local user can escalate privileges on the system.
2) Privilege escalation (CVE-ID: CVE-2017-1000368)
The vulnerability allows a local attacker to gain elevated privileges on the target system.The weakness exists due to improper input validation in the get_process_ttyname() function when parsing tty information from the process status file in the proc files by sudo. A local attacker can supply a specially crafted file to obtain potentially sensitive information or execute arbitrary command with root privileges.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.