[security bulletin] SSRT4741 rev.0 DCE for HP Tru64 UNIX Potential RPC Buffer Overrun Attack
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HP SECURITY BULLETIN
HPSBTU01051 REVISION: 0
SSRT4741 rev.0 DCE for HP Tru64 UNIX Potential
RPC Buffer Overrun Attack
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NOTICE:
There are no restrictions for distribution of this Bulletin
provided that it remains complete and intact.
The information in this Security bulletin should be acted upon
as soon as possible.
INITIAL RELEASE: 21 June 2004
POTENTIAL SECURITY IMPACT: Buffer overflow denial of service
(DoS)
SOURCE: HEWLETT-PACKARD COMPANY
HP Software Security Response Team
REFERENCES: VU#259796, VU#568148, VU#326746, VU#377804
VULNERABILITY SUMMARY:
A problem has been detected where an exploit program sends
invalid packet data which causes a buffer overflow in DCE
servers and could create a denial of service.
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
All versions of DCE/DFS for Tru64 UNIX are vulnerable v4.1.4
(ifspec), v4.1.5, v4.2 and v4.3
BACKGROUND:
A problem has been detected where an exploit program sends
invalid packet data which causes a buffer overflow in DCE
servers. After numerous attacks, the server will not respond
to normal DCE requests. This buffer overflow may also affect
DCE clients: If DCE clients have any open associations to a
server, the overrun attack could hit that association and also
cause it to overflow.
As of December 31, 2003, remedial support for DCE has been
transferred to Entegrity Solutions for all HP Tru64 DCE/DFS
products. See the Entegrity Solutions support
http://support.entegrity.com for details.
For a listing of all HP Tru64 UNIX security patch kits please
visit the following web site:
http://h30097.www3.hp.com/unix/security-download.html
RESOLUTION:
Visit the Entegrity Solutions support site for details on
obtaining the security patches:
http://support.entegrity.com
NOTE: If you are using a version of HP Tru64 DCE/DFS not
mentioned, contact Entegrity Technical Support.
support@xxxxxxxxxxxxx
o Follow the instructions to download the software.
o Install the software (follow the instructions in the
Installation and Configuration Guide included in the
documentation download and posted on the online
Documentation Library).
SUPPORT: For further information, contact HP Services support
channel.
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System management and security procedures must be reviewed
frequently to maintain system integrity. HP is continually
reviewing and enhancing the security features of software
products to provide customers with current secure solutions.
"HP is broadly distributing this Security Bulletin in order to
bring to the attention of users of the affected HP products
the important security information contained in this Bulletin.
HP recommends that all users determine the applicability of
this information to their individual situations and take
appropriate action. HP does not warrant that
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(c) Copyright 2004 Hewlett-Packard Development Company, L.P.
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