CVE-2017-8806 : The Debian pg_ctlcluster, pg_createcluster, and pg

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 2017-11-13 09:29:00

Updated 2024-04-01 15:50:53

Source Debian GNU/Linux

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2017-8806

Postgresql » Postgresql » Version: N/A
cpe:2.3:a:postgresql:postgresql:-:*:*:*:*:*:*:*
Matching versions
When used together with: Canonical » Ubuntu Linux » Version: 14.04 LTS Edition
When used together with: Canonical » Ubuntu Linux » Version: 16.04 LTS Edition
When used together with: Canonical » Ubuntu Linux » Version: 17.04
When used together with: Canonical » Ubuntu Linux » Version: 17.10
When used together with: Debian » Debian Linux » Version: 8.0
When used together with: Debian » Debian Linux » Version: 9.0

Exploit prediction scoring system (EPSS) score for CVE-2017-8806

EPSS FAQ

0.25%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 49 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-8806

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
3.6	LOW	AV:L/AC:L/Au:N/C:N/I:P/A:P	3.9	4.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: Partial
5.5	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N	1.8	3.6	NIST	2024-04-01
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2017-8806

CWE-59 Improper Link Resolution Before File Access ('Link Following')

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2017-8806

https://www.debian.org/security/2017/dsa-4029

Debian -- Security Information -- DSA-4029-1 postgresql-common
Issue Tracking;Third Party Advisory
http://www.securityfocus.com/bid/101810

Debian Postgresql-common CVE-2017-8806 Multiple Insecure Temporary File Handling Vulnerabilities
Broken Link;Third Party Advisory;VDB Entry
https://usn.ubuntu.com/usn/usn-3476-1/

USN-3476-1: postgresql-common vulnerabilities | Ubuntu security notices
Issue Tracking;Third Party Advisory
http://metadata.ftp-master.debian.org/changelogs/main/p/postgresql-common/postgresql-common_181+deb9u1_changelog

404 Not Found
Broken Link;Issue Tracking;Third Party Advisory

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Vulnerability Details : CVE-2017-8806

Products affected by CVE-2017-8806

Exploit prediction scoring system (EPSS) score for CVE-2017-8806

CVSS scores for CVE-2017-8806

CWE ids for CVE-2017-8806

References for CVE-2017-8806