Link Following Affecting systemd-python package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-RHEL7-SYSTEMDPYTHON-1381482
  • published 26 Jul 2021
  • disclosed 25 Jan 2018

How to fix?

There is no fixed version for RHEL:7 systemd-python.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd-python package and not the systemd-python package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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.

CVSS Scores

version 3.1
Expand this section

NVD

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High