7

CVE-2018-15687

Exploit

systemd: chown_one() can dereference symlinks

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.10
Systemd Project ≫ Systemd Version >= 235 < 240
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.06% 0.6
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NIST 6.9 3.4 10
AV:L/AC:M/Au:N/C:C/I:C/A:C
Canonical 7.8 1.8 5.9
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

https://usn.ubuntu.com/3816-1/
Third Party Advisory
https://security.gentoo.org/glsa/201810-10
Third Party Advisory
http://www.securityfocus.com/bid/105748
Third Party Advisory
Broken Link
VDB Entry
https://github.com/systemd/systemd/pull/10517/commits
Patch
Third Party Advisory
https://www.exploit-db.com/exploits/45715/
Third Party Advisory
Exploit
VDB Entry