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HEWLETT-PACKARD SECURITY BULLETIN: #00058, 28 April 1997
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The information in the following Security Bulletin should be acted upon
as soon as possible. Hewlett Packard will not be liable for any
consequences to any customer resulting from customer's failure to fully
implement instructions in this Security Bulletin as soon as possible.
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PROBLEM: Buffer overflow condition in libXt/Error.c
PLATFORM: HP 9000 series 700/800 systems running version 9.X or 10.X
DAMAGE: Users could increase privileges.
SOLUTION: Apply the patches listed below and relink any suid/sgid
programs that use libXt.a. Programs that use the shared
library libXt.sl require no action other than loading
the patches.
AVAILABILITY: All patches are available now.
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I.
A. Background
A buffer overflow condition has been identified in the Xt
library. This can be exploited using suid/sgid programs
to increase privileges.
B. Fixing the problem
Apply the library patches and relink any suid/sgid programs
that are linked with the archived version of libXt.
C. Recommended solution
Install the applicable patches:
PHSS_10167 9.X X11R5/Motif1.2 Runtime
PHSS_10168 9.X X11R5/Motif1.2 Development
PHSS_9809 10.0X/10.10 X11R5/Motif1.2 Runtime
PHSS_9810 10.0X/10.10 X11R5/Motif1.2 Development
PHSS_10688 10.20 X11R5/Motif1.2 Runtime
PHSS_9813 10.20 X11R5/Motif1.2 Development
PHSS_10789 10.20 X11R6/Motif1.2 Runtime
PHSS_9815 10.20 X11R6/Motif1.2 Development
Then relink as indicated above.
D. Impact of the patch
Installs new versions of X11R5 or X11R6 and Motif1.2.
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Click on the Technical Knowledge Database, register as a user
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F. To report new security vulnerabilities, send email to
security-alert@hp.com
Please encrypt any exploit information using the security-alert
PGP key, available from your local key server, or by sending a
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