CVE-2017-16227

7.5 HIGH
Published: October 29, 2017 Modified: May 13, 2026
View on NVD

Description

The aspath_put function in bgpd/bgp_aspath.c in Quagga before 1.2.2 allows remote attackers to cause a denial of service (session drop) via BGP UPDATE messages, because AS_PATH size calculation for long paths counts certain bytes twice and consequently constructs an invalid message.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txt
Source: cve@mitre.org
Issue Tracking Third Party Advisory
http://www.debian.org/security/2017/dsa-4011
Source: cve@mitre.org
Issue Tracking Third Party Advisory
https://bugs.debian.org/879474
Source: cve@mitre.org
Issue Tracking Patch Third Party Advisory
https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008
Source: cve@mitre.org
Issue Tracking Patch Third Party Advisory
https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.html
Source: cve@mitre.org
Issue Tracking Patch Third Party Advisory
http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
http://www.debian.org/security/2017/dsa-4011
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
https://bugs.debian.org/879474
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Third Party Advisory
https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Third Party Advisory
https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.html
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Third Party Advisory

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
18.8%
97th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

debian quagga

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