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gtkdiskfree is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200510-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: gtkdiskfree: Insecure temporary file creation Date: October 03, 2005 Bugs: #104565 ID: 200510-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= gtkdiskfree is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files. Background ========= gtkdiskfree is a GTK-based GUI to show free disk space. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/gtkdiskfree < 1.9.3-r1 > = 1.9.3-r1 Description ========== Eric Romang discovered that gtkdiskfree insecurely creates a predictable temporary file to handle command output. Impact ===== A local attacker could create a symbolic link in the temporary files directory, pointing to a valid file somewhere on the filesystem. When gtkdiskfree is executed, this would result in the file being overwritten with the rights of the user running the application. Workaround ========= There is no known workaround at this time. Resolution ========= All gtkdiskfree users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =app-admin/gtkdiskfree-1.9.3-r1" References ========= [ 1 ] CAN-2005-2918 https://www.cve.org/CVERecord?id=CVE-CAN-2005-2918 [ 2 ] Original Advisory Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200510-01 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 This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. License ====== Copyright 2005 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. https://creativecommons.org/licenses/by-sa/2.0/ . The Gentoo Linux Security Advisory GLSA 200510-01 discusses a vulnerability in gtkdiskfree regarding its handling of temporary files, leading to potential filesystem access. gtkdiskfree, file risk, local exploit, gentoo advisory. . LinuxSecurity.com Team

Oct 03, 2005 Gentoo