CVE-2017-8806
Ubuntu Security Notice USN-3476-2
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
Los scripts de Debian pg_ctlcluster, pg_createcluster y pg_upgradecluster, tal y como se distribuyen en el paquete de Debian postgresql-common anterior a 181+deb9u1 para PostgreSQL (y otros paquetes relacionados con Debian y Ubuntu), manipularon vínculos simbólicos de forma no segura, lo que podría desembocar en una denegación de servicio local sobrescribiendo archivos arbitrarios.
Dawid Golunski discovered that the postgresql-common pg_ctlcluster script incorrectly handled symlinks. A local attacker could possibly use this issue to escalate privileges. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. It was discovered that the postgresql-common helper scripts incorrectly handled symlinks. A local attacker could possibly use this issue to escalate privileges. Various other issues were also addressed.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2017-05-07 CVE Reserved
- 2017-11-09 CVE Published
- 2024-08-05 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| http://metadata.ftp-master.debian.org/changelogs/main/p/postgresql-common/postgresql-common_181+deb9u1_changelog | Broken Link | |
| http://www.securityfocus.com/bid/101810 | Broken Link | |
| https://usn.ubuntu.com/usn/usn-3476-1 | Issue Tracking |
|
| https://www.debian.org/security/2017/dsa-4029 | Issue Tracking |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | - | - |
Affected
| in | Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Safe
|
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | - | - |
Affected
| in | Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Safe
|
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | - | - |
Affected
| in | Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 17.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "17.04" | - |
Safe
|
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | - | - |
Affected
| in | Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 17.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "17.10" | - |
Safe
|
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | - | - |
Affected
| in | Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Safe
|
| Postgresql Search vendor "Postgresql" | Postgresql Search vendor "Postgresql" for product "Postgresql" | - | - |
Affected
| in | Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Safe
|