CVE-2017-16227

quagga: Incorrect AS_PATH size calculation for long paths

Published Oct 29, 2017 CVSS 3.0 · 7.5 High EPSS 46.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1152-1 quagga security update
Debian DSA Debian DSA DSA-4011-1 quagga security update
EUVD EUVD EUVD-2017-7426 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.
Ubuntu USN Ubuntu USN USN-3471-1 Quagga vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.01448}

epss

{'score': 0.01457}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 5, 2024, 8:20 PM
Reserved
Oct 29, 2017, 12:00 AM
Status
Modified
Published
Oct 29, 2017, 8:29 PM
Modified
Jun 17, 2026, 1:09 AM
Severity
Moderate
Public date
Oct 2, 2017, 12:00 AM