SB2019120316 - Ubuntu update for postgresql-common
Published: December 3, 2019
Security Bulletin ID
SB2019120316
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) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-3466)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
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 escalate privileges on the system.
The vulnerability exists due to pg_ctlcluster does not drop privileges before creating sockets and temporary directories outside "/var/run/postgresql". A local user can create arbitrary directories on the system during application startup or reload and elevate privileges on the system.
Remediation
Install update from vendor's website.