Versio.io

CVE-2018-6954

Common vulnerabilities & exposures (CVE)

CVE databaseCVE database blogpostRelease & EoL database
 
Published at: - 13-02-2018 09:29
Last modified: - 31-01-2022 07:25
Total changes: - 4

Description

systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Low
Attack complexity
Local
Attack vector
High
Availability
High
Confidentiality
High
Integrity
Low
Privileges required
Unchanged
Scope
None
User interaction
7.8
Base score
1.8
5.9
Exploitability score
Impact score
 

Verification logic

OR
OR
vendor=systemd_project AND product=systemd AND versionEndIncluding=237
OR
vendor=canonical AND product=ubuntu_linux AND version=16.04 AND software_edition=lts
vendor=canonical AND product=ubuntu_linux AND version=18.04 AND software_edition=lts
vendor=canonical AND product=ubuntu_linux AND version=18.10
vendor=opensuse AND product=leap AND version=42.3
 

Reference

 


Keywords

NVD

 

CVE-2018-6954

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

We use cookies to ensure that we give you the best experience on our website. Read privacy policies for more information.