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COMMAND command line argument buffer overflow in ps SYSTEMS AFFECTED UnixWare 7.1.1 Open UNIX 8.0.0 PROBLEM In SCO Security Advisory [CSSA-2003-SCO.1] : http://www.sco.com/support/security/index.html The ps command has a command line argument buffer overflow. Note that ps is not a setuid or setgid program, but instead it is authorized to use (and does use) the procprivl(SETPRV,pm_work(P_MACREAD) call. Therefore, this vulnerability is exploitable, and could be used to run code of the attacker's choice with these elevated privileges. SOLUTION The proper solution is to install the latest packages : UnixWare 7.1.1 Location of Fixed Binaries ftp://ftp.sco.com/pub/updates/OpenUNIX/CSSA-2003-SCO.1 Verification MD5 (erg712109.pkg.Z) = 70777560bc1e0d55ceff89dfd8334c47 md5 is available for download from ftp://ftp.sco.com/pub/security/tools Installing Fixed Binaries Upgrade the affected binaries with the following sequence: Download erg712109.pkg.Z to the /var/spool/pkg directory # uncompress /var/spool/pkg/erg712109.pkg.Z # pkgadd -d /var/spool/pkg/erg712109.pkg Open UNIX 8.0.0 Location of Fixed Binaries ftp://ftp.sco.com/pub/updates/OpenUNIX/CSSA-2003-SCO.1 Verification MD5 (erg712109.pkg.Z) = 70777560bc1e0d55ceff89dfd8334c47 md5 is available for download from ftp://ftp.sco.com/pub/security/tools Installing Fixed Binaries Upgrade the affected binaries with the following sequence: Download erg712109.pkg.Z to the /var/spool/pkg directory # uncompress /var/spool/pkg/erg712109.pkg.Z # pkgadd -d /var/spool/pkg/erg712109.pkg