UBUNTU-CVE-2017-18078

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2017-18078
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-18078.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2017-18078
Related
Published
2018-01-29T05:29:00Z
Modified
2018-01-29T05:29:00Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 7.8 (High) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.

References

Affected packages

Ubuntu:Pro:14.04:LTS / systemd

Package

Name
systemd
Purl
pkg:deb/ubuntu/systemd?arch=src?distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

204-0ubuntu18
204-0ubuntu19
204-5ubuntu3
204-5ubuntu5
204-5ubuntu6
204-5ubuntu7
204-5ubuntu8
204-5ubuntu9
204-5ubuntu10
204-5ubuntu11
204-5ubuntu13
204-5ubuntu14
204-5ubuntu15
204-5ubuntu16
204-5ubuntu17
204-5ubuntu18
204-5ubuntu19
204-5ubuntu20

204-5ubuntu20.*

204-5ubuntu20.2
204-5ubuntu20.3
204-5ubuntu20.4
204-5ubuntu20.5
204-5ubuntu20.6
204-5ubuntu20.7
204-5ubuntu20.8
204-5ubuntu20.9
204-5ubuntu20.10
204-5ubuntu20.11
204-5ubuntu20.12
204-5ubuntu20.13
204-5ubuntu20.14
204-5ubuntu20.15
204-5ubuntu20.18
204-5ubuntu20.19
204-5ubuntu20.20
204-5ubuntu20.21
204-5ubuntu20.22
204-5ubuntu20.24
204-5ubuntu20.25
204-5ubuntu20.26
204-5ubuntu20.28
204-5ubuntu20.29
204-5ubuntu20.31
204-5ubuntu20.31+esm2

Ecosystem specific 

{
    "ubuntu_priority": "low"
}

Ubuntu:Pro:16.04:LTS / systemd

Package

Name
systemd
Purl
pkg:deb/ubuntu/systemd?arch=src?distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

225-1ubuntu9
227-2ubuntu1
227-2ubuntu2
228-1ubuntu2
228-2ubuntu1
228-2ubuntu2
228-3ubuntu1
228-4ubuntu1
228-4ubuntu2
228-5ubuntu1
228-5ubuntu2
228-5ubuntu3
228-6ubuntu1
229-1ubuntu2
229-1ubuntu4
229-2ubuntu1
229-3ubuntu1
229-3ubuntu2
229-4ubuntu1
229-4ubuntu4
229-4ubuntu5
229-4ubuntu6
229-4ubuntu7
229-4ubuntu8
229-4ubuntu10
229-4ubuntu11
229-4ubuntu12
229-4ubuntu13
229-4ubuntu16
229-4ubuntu17
229-4ubuntu19
229-4ubuntu20
229-4ubuntu21

229-4ubuntu21.*

229-4ubuntu21.1
229-4ubuntu21.2
229-4ubuntu21.3
229-4ubuntu21.4
229-4ubuntu21.5
229-4ubuntu21.6
229-4ubuntu21.8
229-4ubuntu21.9
229-4ubuntu21.10
229-4ubuntu21.15
229-4ubuntu21.16
229-4ubuntu21.17
229-4ubuntu21.19
229-4ubuntu21.21
229-4ubuntu21.22
229-4ubuntu21.23
229-4ubuntu21.27
229-4ubuntu21.28
229-4ubuntu21.29
229-4ubuntu21.31
229-4ubuntu21.31+esm1
229-4ubuntu21.31+esm3

Ecosystem specific 

{
    "ubuntu_priority": "low"
}