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CVE-2017-16227

Published: Oct 29, 2017Updated: May 13, 2026 Sources: CVE List NVD BDUCWE-20
NVD MITRE
7.5CVSSHIGH
EPSS Score
18.8%
Top 3.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20

Affected Products

n/an/a
quaggaquagga
On-prem
Networking Infrastructure / router-switch
debian linuxdebian
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
QuaggaSoftware in the Public Interest Inc.
Mixed
OSS Libraries / generic-library
quaggaoss-projectNetworking Infrastructureaka bgpd, quagga routing software suite
debianoss-projectGBOperating Systemsaka debian gnu/linux
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
software in the public interest inc.oss-projectOSS Librariesaka sip

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
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References

https://bugs.debian.org/879474
bugs.debian.org
http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txt
download.savannah.gnu.org
http://www.debian.org/security/2017/dsa-4011
debian.org
and 6 more references View all →

Timeline

Published
Oct 29, 2017
Last Updated
May 13, 2026

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