Gentoo: 201610-03 Critical: Quagga Remote Code Execution Risk
gentoo
October 10, 2016
A buffer overflow in Quagga might allow remote attackers to execute arbitrary code.
Summary
A memcpy function in the VPNv4 NLRI parser of bgp_mplsvpn.c does not properly check the upper-bound length of received Labeled-VPN SAFI routes data, which may allow for arbitrary code execution on the stack.
Topics Covered
Resolution
All Quagga users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/quagga-1.0.20160315"
References
[ 1 ] CVE-2016-2342 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2342
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201610-03
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: High
Title: Quagga: Arbitrary code execution
Date: October 10, 2016
Bugs: #577156
ID: 201610-03
Topics Covered
Background
Quagga is a free routing daemon replacing Zebra supporting RIP, OSPF
and BGP.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/quagga < 1.0.20160315 >= 1.0.20160315
Impact
=====
A remote attacker could send a specially crafted packet, possibly
resulting in execution of arbitrary code with the privileges of the
process or a Denial of Service condition.
Workaround
There is no known workaround at this time.
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