Denial of Service (DoS) Affecting traffic_server package, versions [6.0.0,6.2.3][7.0.0,7.1.7)[8.0.0,8.0.4)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
81.56% (100th percentile)

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  • Snyk IDSNYK-UNMANAGED-TRAFFICSERVER-2382190
  • published12 Jan 2022
  • disclosed13 Aug 2019
  • creditUnknown

Introduced: 13 Aug 2019

CVE-2019-9513  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade traffic_server to version 7.1.7, 8.0.4 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU.

References

CVSS Base Scores

version 3.1