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Fencer Vulns
high 7.5

CVE-2016-4049 json

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 att…

published 2016-05-23 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-5052

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.6%
EPSS 4.6% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

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.

Patch / fix

  • quagga Ubuntu 14.04 LTS 0.99.22.4-3ubuntu1.2
  • quagga Ubuntu 16.04 LTS 0.99.24.1-2ubuntu1.1

ubuntu advisories UBUNTU-CVE-2016-4049

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • quagga RHEL 6 0.99.15-14.el6
  • quagga-contrib RHEL 6 0.99.15-14.el6

red hat advisories RHSA-2017:0794

  • quagga SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 0.99.15-0.24.2
  • quagga SLES for SAP 12 SP1, SLES for SAP 12, SLES 12 SP1 +3 more 0.99.22.1-12.1

suse advisories SUSE-SU-2016:1483-1SUSE-SU-2016:1482-1

  • quagga openSUSE Tumbleweed 1.0.20160315-5.1

opensuse advisories openSUSE-SU-2024:10362-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-4049 updated cvss 5.9

quagga: denial of service vulnerability in BGP routing daemon

  • Red Hat Enterprise Linux 5 quagga Red Hat Enterprise Linux 7 quagga, quagga-contrib
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Server (v. 6) quagga 0.99.15-14.el6 Red Hat Enterprise Linux Server Optional (v. 6) quagga-contrib 0.99.15-14.el6 Red Hat Enterprise Linux Workstation (v. 6) quagga 0.99.15-14.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) quagga-contrib 0.99.15-14.el6
    fixed: vendor fix RHSA-2017:0794

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.64% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.