Bug 577156 (CVE-2016-2342)

Summary:	<net-misc/quagga-1.0.20160315: Buffer overflow in bgpd (CVE-2016-2342)
Product:	Gentoo Security	Reporter:	Hanno Böck <hanno>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	major	CC:	pinkbyte
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://www.kb.cert.org/vuls/id/270232
Whiteboard:	B1 [glsa cve]
Package list:		Runtime testing required:	---

Description Hanno Böck gentoo-dev

2016-03-12 14:51:27 UTC

The latest quagga release fixes a buffer overflow, upstream release notes:
https://lists.quagga.net/pipermail/quagga-users/2016-March/014286.html
Vulnerability info:
https://www.kb.cert.org/vuls/id/270232

Comment 1 GLSAMaker/CVETool Bot gentoo-dev

2016-03-13 14:18:22 UTC

CVE-2016-2342 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-2342):
  Quagga is a software routing suite that implements numerous routing
  protocols for Unix-based platforms. 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. Note that hosts are only vulnerable if bgpd is
  running with BGP peers enabled for VPNv4, which is not a default
  configuration.

Comment 2 Sergey Popov gentoo-dev

2016-03-16 14:20:25 UTC

commit 2de159243243efbbf0896de1c7d8938a7302da0f
Author: Sergey Popov <pinkbyte@gentoo.org>
Date:   Wed Mar 16 17:16:51 2016 +0300

    net-misc/quagga: version bump

    Gentoo-Bug: 577156

    Package-Manager: portage-2.2.27


Arches, please test and mark stable =net-misc/quagga-1.0.20160315

Target keywords: alpha amd64 arm hppa ppc sparc x86

Comment 3 Agostino Sarubbo gentoo-dev

2016-03-17 11:56:47 UTC

amd64 stable

Comment 4 Tobias Klausmann (RETIRED) gentoo-dev

2016-03-17 19:04:54 UTC

Stable on alpha.

Comment 5 Jeroen Roovers (RETIRED) gentoo-dev

2016-03-19 07:24:03 UTC

Stable for HPPA.

Comment 6 Agostino Sarubbo gentoo-dev

2016-03-19 11:40:50 UTC

sparc stable

Comment 7 Markus Meier gentoo-dev

2016-03-24 06:05:26 UTC

arm stable

Comment 8 Agostino Sarubbo gentoo-dev

2016-03-27 10:17:18 UTC

ppc stable

Comment 9 Agostino Sarubbo gentoo-dev

2016-04-11 10:39:23 UTC

x86 stable.

Maintainer(s), please cleanup.
Security, please add it to the existing request, or file a new one.

Comment 10 Sergey Popov gentoo-dev

2016-04-19 08:04:56 UTC

Old vulnerable versions are masked

Comment 11 Aaron Bauman (RETIRED) gentoo-dev

2016-06-07 10:21:44 UTC

The ebuilds must be removed from the tree.  Please let us know when you can remove them.  Thanks.

Comment 12 Sergey Popov gentoo-dev

2016-06-07 13:17:01 UTC

(In reply to Aaron Bauman from comment #11)
> The ebuilds must be removed from the tree.  Please let us know when you can
> remove them.  Thanks.

They must not, they should me removed, but until they are not - we can keep them masked per our policy.

I will keep them masked until quagga team will sort out all problems in new releases. In some OSPF configurations new releases of quagga just crashes, no solution provided for now. 

This particular bug is about vulnerability in bgpd. I think that it is unreasonable to let OSPF users suffer from regression, because of fixing vulnerability in bgpd, which maybe even not used by them

Comment 13 GLSAMaker/CVETool Bot gentoo-dev

2016-10-10 08:14:59 UTC

This issue was resolved and addressed in
 GLSA 201610-03 at https://security.gentoo.org/glsa/201610-03
by GLSA coordinator Aaron Bauman (b-man).