Race condition in the Xsession script, as used by X Display Manager (xdm) in NetBSD before 20060212, X.Org before 20060225, and Solaris 8 through 10 before 20061006, causes a user's Xsession errors file to have weak permissions before a chmod is performed, which allows local users to read Xsession errors files of other users.
Exploitability
AV:LAC:HAu:NImpact
C:PI:NA:N1.2/AV:L/AC:H/Au:N/C:P/I:N/A:N