CVE-2017-8806 json
The Debian pg_ctlcluster, pg_createcluster, and pg_upgradecluster scripts, as distributed in the Debian postgresql-common package before 18…
published 2017-11-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17749
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- postgresql-common Debian 14, Debian 13, Debian 12 188
debian advisories DEBIAN-CVE-2017-8806
- postgresql-common Ubuntu 14.04 LTS 154ubuntu1.1
- postgresql-common Ubuntu 16.04 LTS 173ubuntu0.1
ubuntu advisories UBUNTU-CVE-2017-8806
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 3.6 | AV:L/AC:L/Au:N/C:N/I:P/A:P |
Affected products
- n/a PostgreSQL-related scripts that are specific to Debian and Ubuntu
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
- Technology feeds
References
-
metadata.ftp-master.debian.org
/changelogs/main/p/postgresql-common/postgresql-common_181+deb9u1_changelog
broken-link, issue-tracking, third-party-advisory
-
securityfocus.com
/bid/101810
vdb-entry, broken-link, third-party-advisory
-
usn.ubuntu.com
/usn/usn-3476-1/
issue-tracking, third-party-advisory
-
debian.org
/security/2017/dsa-4029
issue-tracking, third-party-advisory
Sources
- CVE List CVE-2017-8806
- NVD CVE-2017-8806
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.