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Gentoo Linux Security Advisory                           GLSA 201804-18
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: tenshi: Privilege escalation
     Date: April 22, 2018
     Bugs: #626654
       ID: 201804-18

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Synopsis
=======
Gentoo's tenshi ebuild is vulnerable to privilege escalation due to the
way pid files are handled.

Background
=========
A log monitoring program, designed to watch one or more log files for
lines matching user defined regular expressions and report on the
matches.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-admin/tenshi              < 0.17                     >= 0.17 

Description
==========
It was discovered that the tenshi ebuild creates a tenshi.pid file
after dropping privileges to a non-root account.

Impact
=====
A local attacker could escalate privileges to root or kill arbitrary
processes.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-admin/tenshi-0.17"

References
=========
[ 1 ] CVE-2017-11746
      https://nvd.nist.gov/vuln/detail/CVE-2017-11746

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

 https://security.gentoo.org/glsa/201804-18

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 2018 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/

Gentoo: GLSA-201804-18: tenshi: Privilege escalation

Gentoo's tenshi ebuild is vulnerable to privilege escalation due to the way pid files are handled.

Summary

It was discovered that the tenshi ebuild creates a tenshi.pid file after dropping privileges to a non-root account.

Resolution

All tenshi users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/tenshi-0.17"

References


[ 1 ] CVE-2017-11746 https://nvd.nist.gov/vuln/detail/CVE-2017-11746

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201804-18

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.

Severity
Severity: Normal
Title: tenshi: Privilege escalation
Date: April 22, 2018
Bugs: #626654
ID: 201804-18

Synopsis

Gentoo's tenshi ebuild is vulnerable to privilege escalation due to the way pid files are handled.

Background

A log monitoring program, designed to watch one or more log files for lines matching user defined regular expressions and report on the matches.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/tenshi < 0.17 >= 0.17

Impact

===== A local attacker could escalate privileges to root or kill arbitrary processes.

Workaround

There is no known workaround at this time.

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