CVE-2016-4049

quagga: denial of service vulnerability in BGP routing daemon

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The bgp_dump_routes_func function in bgpd/bgp_dump.c in Quagga does not perform size checks when dumping data, which might allow remote attackers to cause a denial of service (assertion failure and daemon crash) via a large BGP packet.

La función bgp_dump_routes_func en bgpd/bgp_dump.c en Quagga no lleva a cabo comprobaciones de tamaño cuando hay datos de envío, lo que podría permitir a atacantes remotos provocar una denegación de servicio (fallo de aserción y caída de demonio) a través de un paquete grande BGP.

A denial of service flaw was found in the Quagga BGP routing daemon (bgpd). Under certain circumstances, a remote attacker could send a crafted packet to crash the bgpd daemon resulting in denial of service.

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.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-04-20 CVE Reserved
2016-05-23 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (11)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2016/04/27/7	Mailing List
http://www.securityfocus.com/bid/88561	Vdb Entry
http://www.securitytracker.com/id/1035699	Vdb Entry
https://lists.quagga.net/pipermail/quagga-dev/2016-February/014743.html	Mailing List
https://lists.quagga.net/pipermail/quagga-dev/2016-January/014699.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2016-05/msg00062.html	2018-10-30
http://rhn.redhat.com/errata/RHSA-2017-0794.html	2018-10-30
http://www.debian.org/security/2016/dsa-3654	2018-10-30
https://security.gentoo.org/glsa/201701-48	2018-10-30
https://access.redhat.com/security/cve/CVE-2016-4049	2017-03-21
https://bugzilla.redhat.com/show_bug.cgi?id=1331372	2017-03-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Quagga Search vendor "Quagga"		Quagga Search vendor "Quagga" for product "Quagga"				-		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				42.1 Search vendor "Opensuse" for product "Leap" and version "42.1"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				13.2 Search vendor "Opensuse" for product "Opensuse" and version "13.2"		-		Affected