Improper Input Validation Affecting quagga/quagga package, versions [,1.2.2)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
45.96% (99th percentile)

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  • Snyk IDSNYK-UNMANAGED-QUAGGAQUAGGA-2374140
  • published26 Jan 2022
  • disclosed29 Oct 2017
  • creditUnknown

Introduced: 29 Oct 2017

CVE-2017-16227  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade quagga/quagga to version 1.2.2 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. 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 Base Scores

version 3.1