CVE-2018-6954 Affecting systemd package, versions <238-1


Severity

low

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-DEBIAN12-SYSTEMD-1560114
  • published 13 Feb 2018
  • disclosed 13 Feb 2018

How to fix?

Upgrade Debian:12 systemd to version 238-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Debian. See How to fix? for Debian:12 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
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Snyk

7.8 low
  • 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
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NVD

7.8 high
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SUSE

7.1 high
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Red Hat

7 high