[arch-security] [ASA-201708-10] libytnef: arbitrary code execution
Remi Gacogne
rgacogne at archlinux.org
Tue Aug 15 09:22:47 UTC 2017
Arch Linux Security Advisory ASA-201708-10
==========================================
Severity: High
Date : 2017-08-14
CVE-ID : CVE-2017-9058
Package : libytnef
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-275
Summary
=======
The package libytnef before version 1.9.2-2 is vulnerable to arbitrary
code execution.
Resolution
==========
Upgrade to 1.9.2-2.
# pacman -Syu "libytnef>=1.9.2-2"
The problem has been fixed upstream but no release is available yet.
Workaround
==========
None.
Description
===========
A heap-buffer-overflow vulnerability has been found in the libytnef in
the lib/ytnef.c module.
Impact
======
A remote attacker can execute arbitrary code on the affected host via a
crafted tnef file.
References
==========
https://github.com/bingosxs/fuzzdata/blob/master/ytnef-1.9/TNEFFreeMapiProps-Invalid-read.tnef?raw=true
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862556
https://security.archlinux.org/CVE-2017-9058
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