Vulnerability in PostgreSQL
CVE-2017-8806
The Debian pg_ctlcluster, pg_createcluster, and pg_upgradecluster scripts, as distributed in the Debian postgresql-common package before 181+deb9u1 for PostgreSQL (and other packages related to Debian and Ubuntu), handled symbolic links insecurely, which could result in local denial of service by overwriting arbitrary files.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- PostgreSQL
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.04
- Debian Linux — versions 8.0, 9.0
- Postgresql-Related Scripts That Are Specific To Debian And Ubuntu — versions PostgreSQL-related scripts that are specific to Debian and Ubuntu
Weakness classification (CWE)
Public proof-of-concept exploits
References
- metadata.ftp-master.debian.org/changelogs/main/p/postgresql-common/postgresql-c… (Third Party Advisory, Issue Tracking, Broken Link)
- www.securityfocus.com/bid/101810 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- usn.ubuntu.com/usn/usn-3476-1/ (Third Party Advisory, Issue Tracking)
- www.debian.org/security/2017/dsa-4029 (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-8806?
- CVE-2017-8806 is a medium-severity vulnerability in PostgreSQL, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2017-11-13.
- How severe is CVE-2017-8806?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2017-8806 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.