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Security Advisory CERT-NL
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Author/Source : Teun Nijssen Index : S-97-29
Distribution : World Page : 1
Classification: External Version: 1
Subject : libXt (pre X11 R 6.3) buffer overflow Date : 01-May-97
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By courtesy of CERT Coordination Center we received the following information.
CERT Coordination Center advisory CA-97.11.libXt reports a buffer overflow
vulnerability in the Xt library of versions older than X11 Release 6.3
This vulnerability allows normal users of a system to obtain root permissions
by exploiting setuid or setgid programs linked with the library.
This advisory provides vendor patch information and the advise to upgrade to
version X11 R 6.3.
CERT-NL recommends to act according to the CERT-CC advisory.
All CERT Coordination Center advisories are mirrored by CERT-NL.
The specific URL for this case is:
ftp://ftp.surfnet.nl/surfnet/net-security/
cert-cc-mirror/cert_advisories/CA-97.11.libXt
ADVISORIES ARE REGULARLY UPDATED BY CERT COORDINATION CENTER.
Therefore we advise you to check on our mirror regularly -
you can automate this process using the CERT-NL notifier service.
More information about the CERT-NL mirror and notifier services is
contained in News items N-95-01 (notifier) and N-95-02 (CERT mirror),
both present on
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CERT-NL is the Computer Emergency Response Team for SURFnet customers.
SURFnet is the Dutch network for educational, research and related institutes.
CERT-NL is a member of the Forum of Incident Response and Security Teams
(FIRST).
All CERT-NL material is available under:
In case of computer or network security problems please contact your
local CERT/security-team or CERT-NL (if your institute is NOT a SURFnet
customer please address the appropriate (local) CERT/security-team).
CERT-NL is one/two hour(s) ahead of UTC (GMT) in winter/summer,
i.e. UTC+0100 in winter and UTC+0200 in summer (DST).
Email: cert-nl@surfnet.nl
Phone: +31 302 305 305
Fax: +31 302 305 329
Snailmail: SURFnet bv
Attn. CERT-NL
P.O. Box 19035
NL - 3501 DA UTRECHT
The Netherlands
A 7 * 24 hours phone number is available to SURFnet SSC's and FIRST
members on request.
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