Bug 470795 (CVE-2008-4993) - CVE-2008-4993 xen: insecure temporary file use in qemu-dm.debug
Summary: CVE-2008-4993 xen: insecure temporary file use in qemu-dm.debug
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: CVE-2008-4993
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL: http://nvd.nist.gov/nvd.cfm?cvename=C...
Whiteboard:
Depends On: 470808 470809
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-11-10 11:04 UTC by Tomas Hoger
Modified: 2019-09-29 12:27 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-11-24 22:01:48 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2009:0003 0 normal SHIPPED_LIVE Moderate: xen security and bug fix update 2009-01-07 10:33:26 UTC

Description Tomas Hoger 2008-11-10 11:04:17 UTC 
Common Vulnerabilities and Exposures assigned an identifier CVE-2008-4993 to the following vulnerability:

qemu-dm.debug in Xen 3.2.1 allows local users to overwrite arbitrary
files via a symlink attack on the /tmp/args temporary file.

References:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496367
https://bugs.gentoo.org/show_bug.cgi?id=235805
http://dev.gentoo.org/~rbu/security/debiantemp/xen-utils-3.2-1
Comment 1 Tomas Hoger 2008-11-10 11:06:09 UTC 
This debug script is shipped in xen packages in Red Hat Enterprise Linux 5 and Fedora 8.  As of Fedora 9, most of the tools are moved to separate subpackage - xen-runtime - which does not ship qemu-dm.debug script.
Comment 2 Tomas Hoger 2008-11-10 11:08:37 UTC 
This seems to be quite dummy debug script, that is probably used by xen developers.  Can it possibly have any use on production deployments?
Comment 3 Daniel Berrangé 2008-11-10 11:17:19 UTC 
I killed it off in Fedora 9 because it is a waste of time shipping it - anyone can trivially create something similar & more suitable to their needs. So I vote for killing it off everywhere else too.
Comment 7 Chris Lalancette 2009-11-24 22:01:48 UTC 
I do believe the errata was shipped for this a long time ago in all relevant packages, so I'm closing this tracking bug.

Chris Lalancette
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