Gentoo: GLSA 201612-31 Normal: exFAT DoS Risk and Code Execution
gentoo
December 12, 2016
Two vulnerabilities have been found in exFAT allowing remote attackers to execute arbitrary code or cause Denial of Service.
Summary
Two vulnerabilities were found in exFAT. A malformed input can cause a write heap overflow or cause an endless loop.
Topics Covered
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 for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201612-31
style>.gentoo_availability{display:block;}
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@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
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Severity: Normal
Title: exFAT: Multiple vulnerabilities
Date: December 12, 2016
Bugs: #563936
ID: 201612-31
Topics Covered
Background
A full-featured exFAT file system implementation for Unix-like systems.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-fs/exfat-utils < 1.2.1 >= 1.2.1
Impact
=====
Remote attackers could execute arbitrary code or cause Denial of
Service.
Workaround
There is no known workaround at this time.
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