Link following in PostgreSQL-related scripts that are specific to Debian and Ubuntu
Priority LOW 25CWE-59Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
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.
Why it matters now
EPSS 0.00419 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | PostgreSQL-related scripts that are specific to Debian and Ubuntu | PostgreSQL-related scripts that are specific to Debian and Ubuntu | — | No fix listed | CNA |
- PostgreSQL-related scripts that are specific to Debian and Ubuntu Vendor— Affected PostgreSQL-related scripts that are specific to Debian and Ubuntu Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:postgresql:postgresql:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | PostgreSQL |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Running on | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Running on | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:* | 17.04 | Running on | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* | 17.10 | Running on | Canonical |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Running on | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Running on | Debian |
- cpe:2.3:a:postgresql:postgresql:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·PostgreSQL
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Running on ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Running on ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:* Versions 17.04 Running on ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* Versions 17.10 Running on ·Canonical
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Running on ·Debian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-8806
- 2026-10-03 Alias added: GHSA-xg92-g8h7-v7r4
References
More Postgresql vulnerabilities
- TI-2019-06651 In PostgreSQL 9.3 through 11.2, the "COPY TO/FROM PROGRAM" function allows superusers and… CVSS 3.0HIGH 7.2
- TI-2017-05187 Improper authentication in postgresql CVSS 3.0CRITICAL 9.8
- TI-2020-15711 SQL injection in postgresql CVSS 3.1HIGH 8.8
- TI-2013-01675 Argument injection vulnerability in PostgreSQL 9.2.x before 9.2.4, 9.1.x before 9.1.9… CVSS 2.0MEDIUM 6.5
- TI-2007-03176 The Database Link library (dblink) in PostgreSQL 8.1 implements functions via CREATE… CVSS 2.0HIGH 9.0
- TI-2022-01423 SQL injection in postgresql CVSS 3.1HIGH 8.8
Sources
- CVE-2017-8806 · CVE Program
- CVE-2017-8806 · NVD
- FIRST EPSS
- GHSA-xg92-g8h7-v7r4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences