Privilege escalation in PostgreSQL Postgresql-Common
CVE-2019-3466
The pg_ctlcluster script in postgresql-common in versions prior to 210 didn't drop privileges when creating socket/statistics temporary directories, which could result in local privilege escalation.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- PostgreSQL Postgresql-Common
- Canonical Ubuntu Linux — versions 16.04, 18.04, 19.04
- Debian Linux — versions 9.0, 10.0
- Postgresql-Common (Debian-Specific Postgres Management Tools) — versions Versions before 210
Weakness classification (CWE)
Public proof-of-concept exploits
References
- blog.mirch.io/2019/11/15/cve-2019-3466-debian-ubuntu-pg_ctlcluster-privilege-es… (Exploit, Patch, Third Party Advisory)
- usn.ubuntu.com/4194-2/ (vendor-advisory)
Frequently asked questions
- What is CVE-2019-3466?
- CVE-2019-3466 is a high-severity vulnerability in PostgreSQL Postgresql-Common, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2019-11-20.
- How severe is CVE-2019-3466?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-3466 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.