GLSA 201804-18: tenshi: Privilege escalation

http://security.gentoo.org/

Severity:	normal
Title:	tenshi: Privilege escalation
Date:	04/22/2018
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	Architecture(s)
app-admin/tenshi	< 0.17	>= 0.17	All supported architectures

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

CVE-2017-11746

Availability

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

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.