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Gentoo: GLSA 201612-31 Normal: exFAT DoS Risk and Code Execution

Two vulnerabilities have been found in exFAT allowing remote attackers to execute arbitrary code or cause Denial of Service.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201612-31 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: exFAT: Multiple vulnerabilities Date: December 12, 2016 Bugs: #563936 ID: 201612-31 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Two vulnerabilities have been found in exFAT allowing remote attackersto execute arbitrary code or cause Denial of Service. Background ========= A full-featured exFAT file system implementation for Unix-like systems. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-fs/exfat-utils < 1.2.1 > = 1.2.1 Description ========== Two vulnerabilities were found in exFAT. A malformed input can cause a write heap overflow or cause an endless loop. Impact ===== Remote attackers could execute arbitrary code or cause Denial of Service. Workaround ========= There is no known workaround at this time. Resolution ========= All exFAT users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =sys-fs/exfat-utils-1.2.1" References ========= [ 1 ] CVE-2015-8026 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-8026 [ 2 ] Heap overflow and endless loop in exfatfsck / exfat-utils https://blog.fuzzing-project.org/25-Heap-overflow-and-endless-loop-in-exfatfsck-exfat-utils.html Availability =========== This GLSA and any updates to it are available forviewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201612-31 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 2016 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/2.5/ . Keep informed about the latest Gentoo announcement regarding exFAT security flaws that may permit remote code execution and Denial of Service attacks. Update your systems immediately!. Gentoo Advisory, exFAT Security Fix, Remote Code Execution. . LinuxSecurity.com Team

Dec 12, 2016 Gentoo