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Gentoo Linux Security Advisory                           GLSA 202007-25
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                                           https://security.gentoo.org/
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 Severity: High
    Title: arpwatch: Root privilege escalation
     Date: July 27, 2020
     Bugs: #602552
       ID: 202007-25

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Synopsis
=======
A vulnerability was discovered in arpwatch which may allow local
attackers to gain root privileges.

Background
=========
The ethernet monitor program; for keeping track of ethernet/ip address
pairings.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-analyzer/arpwatch      < 2.1.15-r11            >= 2.1.15-r11

Description
==========
It was discovered that Gentoo’s arpwatch ebuild made excessive
permission operations on its data directories, possibly changing
ownership of unintended files. This only affects OpenRC systems, as the
flaw was exploitable via the init script.

Impact
=====
A local attacker could escalate privileges.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All arpwatch users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=net-analyzer/arpwatch-2.1.15-r11"

References
=========

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

 https://security.gentoo.org/glsa/202007-25

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 2020 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/