___________________________________________________________________________ Caldera International, Inc. Security Advisory Subject: Open UNIX, UnixWare 7: CDE SPC library buffer overflow Advisory number: CSSA-2001-SCO.30 Issue date: 2001 November 6 Cross reference: ___________________________________________________________________________ 1. Problem Description The CDE SPC library is vulnerable to a network buffer overflow attack. This bug manifests itself in dtspcd. 2. Vulnerable Versions Operating System Version Affected Files ------------------------------------------------------------------ UnixWare 7 All /usr/dt/lib/libDtSvc.so.1 Open UNIX 8.0.0 /usr/dt/lib/libDtSvc.so.1 3. Workaround None. 4. UnixWare 7, Open UNIX 8 4.1 Location of Fixed Binaries ftp://stage.caldera.com/pub/security/openunix/CSSA-2001-SCO.30/ 4.2 Verification md5 checksums: 8d5c98f761dd68aa108794d8ed5c70f1 erg711881.Z md5 is available for download from ftp://stage.caldera.com/pub/security/tools/ 4.3 Installing Fixed Binaries Upgrade the affected binaries with the following commands: # uncompress /tmp/erg711881.Z # pkgadd -d /tmp/erg711881 5. References CERT / ISS draft advisory VU#172583 This and other advisories are located at http://stage.caldera.com/support/security This advisory addresses Caldera Security internal incidents sr854831, fz519245, and erg711881 6. Disclaimer Caldera International, Inc. is not responsible for the misuse of any of the information we provide on our website and/or through our security advisories. Our advisories are a service to our customers, intended to promote the secure installation and use of Caldera International products. 7. Acknowledgements This vulnerability was discovered and researched by Chris Spencer of the ISS X-Force. ___________________________________________________________________________