CVE-2017-16227

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txtIssue Tracking, Third Party Advisory
http://www.debian.org/security/2017/dsa-4011Issue Tracking, Third Party Advisory
https://bugs.debian.org/879474Issue Tracking, Patch, Third Party Advisory
https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008Issue Tracking, Patch, Third Party Advisory
https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.htmlIssue Tracking, Patch, Third Party Advisory
http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txtIssue Tracking, Third Party Advisory
http://www.debian.org/security/2017/dsa-4011Issue Tracking, Third Party Advisory
https://bugs.debian.org/879474Issue Tracking, Patch, Third Party Advisory
https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008Issue Tracking, Patch, Third Party Advisory
https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.htmlIssue Tracking, Patch, Third Party Advisory

Timeline

Published: Oct 29, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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