ASA-201706-3 log generated external raw
[ASA-201706-3] libtasn1: arbitrary code execution |
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Arch Linux Security Advisory ASA-201706-3
=========================================
Severity: High
Date : 2017-06-02
CVE-ID : CVE-2017-6891
Package : libtasn1
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-285
Summary
=======
The package libtasn1 before version 4.11-1 is vulnerable to arbitrary
code execution.
Resolution
==========
Upgrade to 4.11-1.
# pacman -Syu "libtasn1>=4.11-1"
The problem has been fixed upstream in version 4.11.
Workaround
==========
None.
Description
===========
Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within
GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based
buffer overflow by tricking a user into processing a specially crafted
assignments file via the e.g. asn1Coding utility.
Impact
======
A remote attacker can execute arbitrary code on the affected host by
tricking a local user into processing a specially crafted assignments
file.
References
==========
https://git.savannah.gnu.org/gitweb/?p=libtasn1.git;a=commitdiff;h=5520704d075802df25ce4ffccc010ba1641bd484
https://secuniaresearch.flexerasoftware.com/secunia_research/2017-11/
https://security.archlinux.org/CVE-2017-6891
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