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SCO Security Bulletin 99.12
2nd September 1999
Security vulnerability in  rpc.cmsd
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I.   Description

A security vulnerability has been found in rpc.cmsd.

II.  Impact

This patch provides the fix to a buffer overflow vulnerability in calendar
manager service daemon, rpc.cmsd, reported by CERT in advisory CA-99-08 on
July 22nd 1999.

This vulnerability has been widely reported in the press and by CERT so this
patch should be applied to all systems immediately.

III. Releases

This patch is for UnixWare 7.0.0, 7.0.1 and 7.1.0. 

IV.  Solution

SCO is providing an interim patch to address this issue in the form of a
System Security Enhancement (SSE) package.

SSE030 contains replacement binaries for each system type, and is
available for Internet download via anonymous ftp, and from the SCOFORUM
on Compuserve.

You can download the SSE package as follows:

Anonymous ftp (World Wide Web URL):

    ftp://ftp.sco.COM/SSE/sse030.ltr    (cover letter, ASCII text)
    ftp://ftp.sco.COM/SSE/sse030.tar    (new binaries, tar file)

Compuserve:

    GO SCOFORUM, and search Library 11 (SLS/SSE Files) for these filenames:

	SSE030.LTR	(cover letter, ASCII text)
	SSE030.TAZ	(new binaries, tar file)

Checksums (sum -r):

	27428    3 sse030.ltr
	43815  360 sse030.tar

V.   Updates

This bulletin is available for anonymous ftp download from 
ftp://ftp.sco.COM/SSE/security_bulletins/SB-99.12a, and will be
updated as new information becomes available.

The latest information on security vulnerabilities and fixes from
SCO is available on the world-wide web at http://www.sco.com/security/

VI.  Further Information:

If you have further questions, contact your support provider.  If you
need to contact SCO, please send electronic mail to support@sco.COM, or
contact SCO as follows. 

    USA/Canada: 6am-5pm Pacific Time (PST/PDT)
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    1-800-347-4381  (voice)
    1-408-427-5443  (fax)

    Pacific Rim, Asia, and Latin American customers: 6am-5pm Pacific
    ------------------------------------------------ Time (PST/PDT)
    1-408-425-4726  (voice)
    1-408-427-5443  (fax)

    Europe, Middle East, Africa: 9am-5:30pm UK Time (GMT/BST)
    ----------------------------
    +44 (0)1923 816344 (voice)
    +44 (0)1923 817781 (fax)