- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200612-15 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: McAfee VirusScan: Insecure DT_RPATH Date: December 14, 2006 Bugs: #156989 ID: 200612-15 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== McAfee VirusScan for Linux is distributed with an insecure DT_RPATH, potentially allowing a remote attacker to execute arbitrary code. Background ========== McAfee VirusScan for Linux is a commercial antivirus solution for Linux. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-antivirus/vlnx <= 4510e Vulnerable! ------------------------------------------------------------------- NOTE: Certain packages are still vulnerable. Users should migrate to another package if one is available or wait for the existing packages to be marked stable by their architecture maintainers. Description =========== Jakub Moc of Gentoo Linux discovered that McAfee VirusScan was distributed with an insecure DT_RPATH which included the current working directory, rather than $ORIGIN which was probably intended. Impact ====== An attacker could entice a VirusScan user to scan an arbitrary file and execute arbitrary code with the privileges of the VirusScan user by tricking the dynamic loader into loading an untrusted ELF DSO. An automated system, such as a mail scanner, may be subverted to execute arbitrary code with the privileges of the process invoking VirusScan. Workaround ========== Do not scan files or execute VirusScan from an untrusted working directory. Resolution ========== As VirusScan verifies that it has not been modified before executing, it is not possible to correct the DT_RPATH. Furthermore, this would violate the license that VirusScan is distributed under. For this reason, the package has been masked in Portage pending the resolution of this issue. # emerge --ask --verbose --unmerge "app-antivirus/vlnx" References ========== [ 1 ] CVE-2006-6474 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6474 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200612-15.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@xxxxxxxxxx or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2006 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5
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