Vulnerability CVE-2018-15687
Published: 2018-10-26

Description:
A race condition in chown_one() of systemd allows an attacker to cause systemd to set arbitrary permissions on arbitrary files. Affected releases are systemd versions up to and including 239.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Linux systemd Symlink Dereference Via chown_one()
Jann Horn
27.10.2018

Type:

CWE-362

CVSS2 => (AV:L/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
1.9/10
2.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Freedesktop -> Systemd 
Canonical -> Ubuntu linux 

 References:
http://www.securityfocus.com/bid/105748
https://github.com/systemd/systemd/pull/10517/commits
https://security.gentoo.org/glsa/201810-10
https://usn.ubuntu.com/3816-1/
https://www.exploit-db.com/exploits/45715/
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