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CVE-2016-4049

Published: 23 May 2016

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.

Notes

AuthorNote
mdeslaur
as of 2016-09-15, upstream hasn't commited the proposed patch
debian released update with proposed patch

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
quagga
Launchpad, Ubuntu, Debian
precise
Released (0.99.20.1-0ubuntu0.12.04.5)
trusty
Released (0.99.22.4-3ubuntu1.2)
upstream
Released (1.0.20160315-2)
wily Ignored
(end of life)
xenial
Released (0.99.24.1-2ubuntu1.1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H