X.Org XDM XSession Script Race Condition Vulnerability

BID:20400

Info

X.Org XDM XSession Script Race Condition Vulnerability

Bugtraq ID: 20400
Class: Race Condition Error
CVE: CVE-2006-5214
Remote: No
Local: Yes
Published: Oct 06 2006 12:00AM
Updated: Aug 10 2007 05:34PM
Credit: Steven M. Bellovin is credited with the discovery of this vulnerability.
Vulnerable: X.org X11R7 7.1
Ubuntu Ubuntu Linux 5.10 sparc
Ubuntu Ubuntu Linux 5.10 powerpc
Ubuntu Ubuntu Linux 5.10 i386
Ubuntu Ubuntu Linux 5.10 amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
Sun Solaris 9_x86
Sun Solaris 9
Sun Solaris 8_x86
Sun Solaris 8_sparc
Sun Solaris 10_x86
Sun Solaris 10.0_x86
Sun Solaris 10.0
Sun Solaris 10
Redhat Fedora Core6
NetBSD NetBSD Current
Avaya CMS Server 13.0
Avaya CMS Server 12.0
Avaya CMS Server 11.0
Avaya CMS Server 10.0
Avaya CMS Server 9.0
Avaya CMS Server 13.1
Not Vulnerable:

Discussion

X.Org XDM XSession Script Race Condition Vulnerability

The X.org XDM XSession script is prone to a race-condition vulnerability.

Local unprivileged attackers can exploit this issue to gain access to the primary or alternate 'xdm' error log files. Successful exploits will allow attackers to obtain sensitive information.

Exploit / POC

X.Org XDM XSession Script Race Condition Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected]

Solution / Fix

X.Org XDM XSession Script Race Condition Vulnerability

Solution:
The vendor has committed a change to CVS that addresses this issue. Please see the references for more information.


Sun Solaris 10.0

Ubuntu Ubuntu Linux 6.06 LTS amd64

Sun Solaris 9

Sun Solaris 9_x86

Sun Solaris 10.0_x86

Ubuntu Ubuntu Linux 6.06 LTS sparc

Sun Solaris 8_x86

Ubuntu Ubuntu Linux 6.06 LTS powerpc

Sun Solaris 8_sparc

Ubuntu Ubuntu Linux 6.06 LTS i386

Ubuntu Ubuntu Linux 5.10 powerpc

Ubuntu Ubuntu Linux 5.10 i386

Ubuntu Ubuntu Linux 5.10 amd64

References

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