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CVE-2016-2342

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2017-0794-01
Posted Mar 21, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0794-01 - The quagga packages contain Quagga, the free network-routing software suite that manages TCP/IP based protocols. Quagga supports the BGP4, BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, and RIPng protocols, and is intended to be used as a Route Server and Route Reflector. Security Fix: A stack-based buffer overflow flaw was found in the way Quagga handled IPv6 router advertisement messages. A remote attacker could use this flaw to crash the zebra daemon resulting in denial of service.

tags | advisory, remote, denial of service, overflow, tcp, protocol
systems | linux, redhat
advisories | CVE-2013-2236, CVE-2016-1245, CVE-2016-2342, CVE-2016-4049, CVE-2017-5495
MD5 | c843d51004ac9904d1165c5bf312bb06
Gentoo Linux Security Advisory 201610-03
Posted Oct 10, 2016
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201610-3 - A buffer overflow in Quagga might allow remote attackers to execute arbitrary code. Versions less than 1.0.20160315 are affected.

tags | advisory, remote, overflow, arbitrary
systems | linux, gentoo
advisories | CVE-2016-2342
MD5 | 69c65c932771fd13ec9cb35a24d286ca
Debian Security Advisory 3532-1
Posted Mar 28, 2016
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3532-1 - Kostya Kortchinsky discovered a stack-based buffer overflow vulnerability in the VPNv4 NLRI parser in bgpd in quagga, a BGP/OSPF/RIP routing daemon. A remote attacker can exploit this flaw to cause a denial of service (daemon crash), or potentially, execution of arbitrary code, if bgpd is configured with BGP peers enabled for VPNv4.

tags | advisory, remote, denial of service, overflow, arbitrary
systems | linux, debian
advisories | CVE-2016-2342
MD5 | 0fe27d2e21d7bdb9a0d6191969679e0b
Ubuntu Security Notice USN-2941-1
Posted Mar 24, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2941-1 - Kostya Kortchinsky discovered that Quagga incorrectly handled certain route data when configured with BGP peers enabled for VPNv4. A remote attacker could use this issue to cause Quagga to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that Quagga incorrectly handled messages with a large LSA when used in certain configurations. A remote attacker could use this issue to cause Quagga to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2013-2236, CVE-2016-2342
MD5 | 695721c68ce127c7bb20cdc23c9aa960
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