GLSA 200803-23: Website META Language: Insecure temporary file usage

http://security.gentoo.org/

Severity:	normal
Title:	Website META Language: Insecure temporary file usage
Date:	03/15/2008
Bugs:	#209927
ID:	200803-23

Synopsis

Multiple insecure temporary file vulnerabilities have been discovered in the Website META Language.

Background

Website META Language is a free and extensible Webdesigner's off-line HTML generation toolkit for Unix.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-lang/wml	< 2.0.11-r3	>= 2.0.11-r3	All supported architectures

Description

Temporary files are handled insecurely in the files wml_backend/p1_ipp/ipp.src, wml_contrib/wmg.cgi, and wml_backend/p3_eperl/eperl_sys.c, allowing users to overwrite or delete arbitrary files with the privileges of the user running the program.

Impact

Local users can exploit the insecure temporary file vulnerabilities via symlink attacks to perform certain actions with escalated privileges.

Workaround

Restrict access to the temporary directory to trusted users only.

Resolution

All Website META Language users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/wml-2.0.11-r3"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200803-23.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.