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Debian: 202209-23 Warning: Libtool, Python-sql Symlink Vulnerability

GNU shtool and ocaml-mysql are vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200506-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: GNU shtool, ocaml-mysql: Insecure temporary file creation Date: June 11, 2005 Bugs: #93782, #93784 ID: 200506-08 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= GNU shtool and ocaml-mysql are vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files. Background ========= GNU shtool is a compilation of small shell scripts into a single shell tool. The ocaml-mysql package includes the GNU shtool code. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-util/shtool < 2.0.1-r2 > = 2.0.1-r2 2 dev-ml/ocaml-mysql < 1.0.3-r1 > = 1.0.3-r1 ------------------------------------------------------------------- 2 affected packages on all of their supported architectures. ------------------------------------------------------------------- Description ========== Eric Romang has discovered that GNU shtool insecurely creates temporary files with predictable filenames (CAN-2005-1751). On closer inspection, Gentoo Security discovered that the shtool temporary file, once created, was being reused insecurely (CAN-2005-1759). Impact ===== A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere onthe filesystem. When a GNU shtool script is executed, this would result in the file being overwritten with the rights of the user running the script, which could be the root user. Workaround ========= There is no known workaround at this time. Resolution ========= All GNU shtool users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =dev-util/shtool-2.0.1-r2" All ocaml-mysql users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =dev-ml/ocaml-mysql-1.0.3-r1" References ========= [ 1 ] CAN-2005-1751 [ 2 ] CAN-2005-1759 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200506-08 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 GNU shtool and ocaml-mysql packages in Gentoo Linux are susceptible to symlink vulnerabilities, which could lead to potential arbitrary file overwrites.. GNU Shtool,shtool security,ocaml-mysql security. . LinuxSecurity.com Team

Jun 11, 2005 Gentoo