To: bugtraqat_private announceat_private scoannmodat_private full-disclosureat_private ______________________________________________________________________________ SCO Security Advisory Subject: Open UNIX 8.0.0 UnixWare 7.1.1 : X server insecure popen and buffer overflow Advisory number: CSSA-2002-SCO.38 Issue date: 2002 August 26 Cross reference: ______________________________________________________________________________ 1. Problem Description The X server did not drop privilege before invoking xkbcomp or other external commands. In addition, there was a buffer overflow in the same area of the code. 2. Vulnerable Supported Versions System Binaries ---------------------------------------------------------------------- Open UNIX 8.0.0 /usr/X/bin/Xsco UnixWare 7.1.1 /usr/X/bin/Xsco 3. Solution The proper solution is to install the latest packages. 4. Open UNIX 8.0.0 4.1 Location of Fixed Binaries ftp://ftp.sco.com/pub/updates/OpenUNIX/CSSA-2002-SCO.38 4.2 Verification MD5 (erg711819b.pkg.Z) = 8c06d16b46b7895c545bcdb7c23475d0 md5 is available for download from ftp://ftp.sco.com/pub/security/tools 4.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: Download erg711819b.pkg.Z to the /var/spool/pkg directory # uncompress /var/spool/pkg/erg711819b.pkg.Z # pkgadd -d /var/spool/pkg/erg711819b.pkg 5. UnixWare 7.1.1 5.1 Location of Fixed Binaries ftp://ftp.sco.com/pub/updates/OpenUNIX/CSSA-2002-SCO.38 5.2 Verification MD5 (erg711819b.pkg.Z) = 8c06d16b46b7895c545bcdb7c23475d0 md5 is available for download from ftp://ftp.sco.com/pub/security/tools 5.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: Download erg711819b.pkg.Z to the /var/spool/pkg directory # uncompress /var/spool/pkg/erg711819b.pkg.Z # pkgadd -d /var/spool/pkg/erg711819b.pkg 6. References Specific references for this advisory: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0987 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0988 http://marc.theaimsgroup.com/?l=bugtraq&m=88653528226228&w=2 SCO security resources: http://www.sco.com/support/security/index.html This security fix closes SCO incidents sr850806, fz518676, erg711819. 7. Disclaimer SCO is not responsible for the misuse of any of the information we provide on this website and/or through our security advisories. Our advisories are a service to our customers intended to promote secure installation and use of SCO products. 8. Acknowledgements This vulnerability was discovered and researched by Olaf Kirch (okirat_private). ______________________________________________________________________________
This archive was generated by hypermail 2b30 : Tue Aug 27 2002 - 11:05:02 PDT