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Date: Thu Aug 18 21:05:44 2005 From: please_reply_to_security at sco.com (please_reply_to_security@....com) Subject: UnixWare 7.1.4 UnixWare 7.1.3 : cpio race condition and directory traversal issues fixed. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ______________________________________________________________________________ SCO Security Advisory Subject: UnixWare 7.1.4 UnixWare 7.1.3 : cpio race condition and directory traversal issues fixed. Advisory number: SCOSA-2005.32 Issue date: 2005 August 18 Cross reference: sr893934 fz532333 erg712854 CAN-2005-1111 CAN-2005-1229 ______________________________________________________________________________ 1. Problem Description A race condition in cpio 2.6 and earlier allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by cpio after the decompression is complete. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-1111 to this issue A directory traversal vulnerability in cpio 2.6 and earlier allows remote attackers to write to arbitrary directories via a .. (dot dot) in a cpio file. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-1229 to this issue 2. Vulnerable Supported Versions System Binaries ---------------------------------------------------------------------- UnixWare 7.1.4 /bin/cpio UnixWare 7.1.3 /bin/cpio 3. Solution The proper solution is to install the latest packages. 4. UnixWare 7.1.4 4.1 Location of Fixed Binaries ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.32 4.2 Verification MD5 (erg712854.uw714.pkg.Z) = a12807ae0a69d88a3b4f0ed7a014f3ef 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 sequence: Download erg712854.uw714.pkg.Z to the /var/spool/pkg directory # uncompress /var/spool/pkg/erg712854.uw714.pkg.Z # pkgadd -d /var/spool/pkg/erg712854.uw714.pkg 5. UnixWare 7.1.3 5.1 Location of Fixed Binaries ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.32 5.2 Verification MD5 (erg712854.uw713.pkg.Z) = 0b514e72f094c21d8c49b359d05e8e7e 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 sequence: Download erg712854.uw713.pkg.Z to the /var/spool/pkg directory # uncompress /var/spool/pkg/erg712854.uw713.pkg.Z # pkgadd -d /var/spool/pkg/erg712854.uw713.pkg 6. References Specific references for this advisory: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1111 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1229 http://xforce.iss.net/xforce/xfdb/20204 SCO security resources: http://www.sco.com/support/security/index.html SCO security advisories via email http://www.sco.com/support/forums/security.html This security fix closes SCO incidents sr893934 fz532333 erg712854. 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. ______________________________________________________________________________ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (SCO/SYSV) iD8DBQFDBOeMaqoBO7ipriERAuRJAJ0cYodhPtdCH7kyiaeMrdtCJTNMdACfVd/E QoE27v9zH1rVoPsC+4yIx6A= =QNAv -----END PGP SIGNATURE-----
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