Vulnerability Name:

CVE-2017-8806 (CCN-134749)

Assigned:2017-11-09
Published:2017-11-09
Updated:2017-12-08
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.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:3.6 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-59
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-8806

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
http://metadata.ftp-master.debian.org/changelogs/main/p/postgresql-common/postgresql-common_181+deb9u1_changelog

Source: BID
Type: Third Party Advisory, VDB Entry
101810

Source: CCN
Type: BID-101810
Debian Postgresql-common CVE-2017-8806 Multiple Insecure Temporary File Handling Vulnerabilities

Source: XF
Type: UNKNOWN
debian-cve20178806-dos(134749)

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://usn.ubuntu.com/usn/usn-3476-1/

Source: CCN
Type: Debian Security Advisory DSA-4029-1
postgresql-common

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
https://www.debian.org/security/2017/dsa-4029

Vulnerable Configuration:Configuration 1:
  • cpe:/a:postgresql:postgresql:-:*:*:*:*:debian:*:*
  • OR cpe:/a:postgresql:postgresql:-:*:*:*:*:ubuntu:*:*

    • Configuration 2:
  • cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.artful:def:20178806000
    V
    		CVE-2017-8806 on Ubuntu 17.10 (artful) - medium.
    2017-11-13
    oval:com.ubuntu.trusty:def:20178806000
    V
    		CVE-2017-8806 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-11-13
    oval:com.ubuntu.xenial:def:20178806000
    V
    		CVE-2017-8806 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-11-13
    oval:com.ubuntu.xenial:def:201788060000000
    V
    		CVE-2017-8806 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-11-13
    BACK
    postgresql postgresql -
    postgresql postgresql -
    canonical ubuntu linux 14.04
    canonical ubuntu linux 16.04
    canonical ubuntu linux 17.04
    canonical ubuntu linux 17.10
    debian debian linux 8.0
    debian debian linux 9.0