[arch-security] [ASA-201706-35] libnl: privilege escalation
Christian Rebischke
Chris.Rebischke at archlinux.org
Wed Jun 28 20:06:28 UTC 2017
Arch Linux Security Advisory ASA-201706-35
==========================================
Severity: Medium
Date : 2017-06-28
CVE-ID : CVE-2017-0553
Package : libnl
Type : privilege escalation
Remote : No
Link : https://security.archlinux.org/AVG-292
Summary
=======
The package libnl before version 3.3.0-1 is vulnerable to privilege
escalation.
Resolution
==========
Upgrade to 3.3.0-1.
# pacman -Syu "libnl>=3.3.0-1"
The problem has been fixed upstream in version 3.3.0.
Workaround
==========
None.
Description
===========
An integer overflow vulnerability has been found in the nlmsg_reserve()
function of libnl < 3.3.0, allowing local privilege escalation.
Impact
======
A local attacker is able to escalate privileges.
References
==========
http://git.infradead.org/users/tgr/libnl.git/commitdiff/3e18948f17148e6a3c4255bdeaaf01ef6081ceeb?hp=3dd2a0f26fa59896b4b4a262cf309a4be4aa70d3
https://security.archlinux.org/CVE-2017-0553
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