GLSA 200604-13: fbida: Insecure temporary file creation

http://security.gentoo.org/

Severity:	normal
Title:	fbida: Insecure temporary file creation
Date:	04/23/2006
Bugs:	#129470
ID:	200604-13

Synopsis

fbida is vulnerable to linking attacks, potentially allowing a local user to overwrite arbitrary files.

Background

fbida is a collection of image viewers and editors for the framebuffer console and X11.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-gfx/fbida	< 2.03-r3	>= 2.03-r3	All supported architectures

Description

Jan Braun has discovered that the "fbgs" script provided by fbida insecurely creates temporary files in the "/var/tmp" directory.

Impact

A local attacker could create links in the temporary file directory, pointing to a valid file somewhere on the filesystem. When an affected script is called, this could result in the file being overwritten with the rights of the user running the script.

Workaround

There is no known workaround at this time.

Resolution

All fbida users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/fbida-2.03-r3"

References

CVE-2006-1695

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200604-13.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.