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[ GLSA 200604-13 ] fbida: Insecure temporary file creation
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GLSA
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Joined: 12 May 2004
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PostPosted: Sun Apr 23, 2006 9:26 pm    Post subject: [ GLSA 200604-13 ] fbida: Insecure temporary file creation Reply with quote

Gentoo Linux Security Advisory

Title: fbida: Insecure temporary file creation (GLSA 200604-13)
Severity: normal
Exploitable: local
Date: April 23, 2006
Bug(s): #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: media-gfx/fbida
Vulnerable: < 2.03-r3
Unaffected: >= 2.03-r3
Architectures: 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:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/fbida-2.03-r3"


References

CVE-2006-1695


Last edited by GLSA on Sun May 07, 2006 5:01 pm; edited 1 time in total
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