GLSA 200710-10: SKK Tools: Insecure temporary file creation

http://security.gentoo.org/

Severity:	normal
Title:	SKK Tools: Insecure temporary file creation
Date:	10/12/2007
Bugs:	#193121
ID:	200710-10

Synopsis

SKK insecurely creates temporary files.

Background

SKK is a Japanese input method for Emacs.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-i18n/skktools	< 1.2-r1	>= 1.2-r1	All supported architectures

Description

skkdic-expr.c insecurely writes temporary files to a location in the form $TMPDIR/skkdic$PID.{pag,dir,db}, where $PID is the process ID.

Impact

A local attacker could create symbolic links in the directory where the temporary files are written, pointing to a valid file somewhere on the filesystem that is writable by the user running the SKK software. When SKK writes the temporary file, the target valid file would then be overwritten with the contents of the SKK temporary file.

Workaround

There is no known workaround at this time.

Resolution

All SKK Tools users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-i18n/skktools-1.2-r1"

References

CVE-2007-3916

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200710-10.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.