GLSA 202007-40: Thin: Privilege escalation

http://security.gentoo.org/

Severity:	normal
Title:	Thin: Privilege escalation
Date:	07/27/2020
Bugs:	#642200
ID:	202007-40

Synopsis

A vulnerability was discovered in Thin which may allow local attackers to kill arbitrary processes (denial of service).

Background

Thin is a small and fast Ruby web server.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-servers/thin	<= 1.7.2		All supported architectures

Description

It was discovered that Gentoo’s Thin ebuild does not properly handle its temporary runtime directories. This only affects OpenRC systems, as the flaw was exploitable via the init script.

Impact

A local attacker could cause denial of service by killing arbitrary processes.

Workaround

There is no known workaround at this time.

Resolution

Gentoo has discontinued support for Thin. We recommend that users unmerge Thin:

      # emerge --unmerge "www-servers/thin"

NOTE: The Gentoo developer(s) maintaining Thin have discontinued support at this time. It may be possible that a new Gentoo developer will update Thin at a later date. There are many other web servers available in the tree in the www-servers category.

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202007-40.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.