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Vulnerability record · CVE-2016-4049 · published 23 May 2016

CVE-2016-4049: Quagga improper input validation vulnerability

Quagga · Quagga

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.

7.5 CVSS 3.0 High EPSS 4.6% · top 8.6% CWE-20 · Improper input validation
7.5CVSS 3.0 base score, v2 5.0
4.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-updates/2016-05/msg00062.html
http://rhn.redhat.com/errata/RHSA-2017-0794.html
http://www.debian.org/security/2016/dsa-3654
http://www.openwall.com/lists/oss-security/2016/04/27/7
http://www.securityfocus.com/bid/88561
http://www.securitytracker.com/id/1035699
https://lists.quagga.net/pipermail/quagga-dev/2016-February/014743.html
https://lists.quagga.net/pipermail/quagga-dev/2016-January/014699.html
https://security.gentoo.org/glsa/201701-48
http://lists.opensuse.org/opensuse-updates/2016-05/msg00062.html
http://rhn.redhat.com/errata/RHSA-2017-0794.html
http://www.debian.org/security/2016/dsa-3654
http://www.openwall.com/lists/oss-security/2016/04/27/7
http://www.securityfocus.com/bid/88561
http://www.securitytracker.com/id/1035699
https://lists.quagga.net/pipermail/quagga-dev/2016-February/014743.html
https://lists.quagga.net/pipermail/quagga-dev/2016-January/014699.html
https://security.gentoo.org/glsa/201701-48

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Source: NIST National Vulnerability Database (record CVE-2016-4049), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.