HIGH
The bgp_nlri_parse_vpnv4 function in bgp_mplsvpn.c in the VPNv4 NLRI parser in bgpd in Quagga before 1.0.20160309, when a certain VPNv4 configuration is used, relies on a Labeled-VPN SAFI routes-data length field during a data copy, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted packet.
http://git.savannah.gnu.org/cgit/quagga.git/commit/?id=a3bc7e9400b214a0f078fdb19596ba54214a1442
http://lists.opensuse.org/opensuse-updates/2016-03/msg00102.html
http://lists.opensuse.org/opensuse-updates/2016-03/msg00117.html
http://nongnu.askapache.com//quagga/quagga-1.0.20160309.changelog.txt
http://rhn.redhat.com/errata/RHSA-2017-0794.html
http://www.debian.org/security/2016/dsa-3532
http://www.kb.cert.org/vuls/id/270232
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.securityfocus.com/bid/84318
Source: MITRE
Published: 2016-03-17
Updated: 2018-01-05
Type: CWE-119
Base Score: 7.6
Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 4.9
Severity: HIGH
Base Score: 8.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.2
Severity: HIGH