GLSA 200502-01: FireHOL: Insecure temporary file creation

http://security.gentoo.org/

Severity:	normal
Title:	FireHOL: Insecure temporary file creation
Date:	02/01/2005
Bugs:	#79330
ID:	200502-01

Synopsis

FireHOL is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.

Background

FireHOL is an iptables rules generator.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-firewall/firehol	< 1.224	>= 1.224	All supported architectures

Description

FireHOL insecurely creates temporary files with predictable names.

Impact

A local attacker could create malicious symbolic links to arbitrary system files. When FireHOL is executed, this could lead to these files being overwritten with the rights of the user launching FireHOL, usually the root user.

Workaround

There is no known workaround at this time.

Resolution

All FireHOL users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-firewall/firehol-1.224"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200502-01.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.