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Gentoo Linux Security Advisory                           GLSA 202305-14
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                                           https://security.gentoo.org/
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 Severity: High
    Title: uptimed: Root Privilege Escalation
     Date: May 03, 2023
     Bugs: #630810
       ID: 202305-14

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Synopsis
========

A vulnerability has been discovered in uptimed which could result in
root privilege escalation.

Background
==========

uptimed is a system uptime record daemon that keeps track of your
highest uptimes.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-misc/uptimed           < 0.4.6-r1                >= 0.4.6-r1

Description
===========

Via unnecessary file ownership modifications in the pkg_postinst ebuild
phase, the uptimed user could change arbitrary files to be owned by the
uptimed user at emerge-time.

Impact
======

The uptimed user could achieve root privileges when the uptimed package
is emerged.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All uptimed users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-misc/uptimed-0.4.6-r1"

References
==========

[ 1 ] CVE-2020-36657
      https://nvd.nist.gov/vuln/detail/CVE-2020-36657

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202305-14

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2023 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5