Resource Exhaustion Affecting nghttp2 package, versions <1.39.2-r0


0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 5.38% (94th percentile)
Expand this section
NVD
7.5 high
Expand this section
SUSE
7.5 high
Expand this section
Red Hat
7.5 high

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ALPINE38-NGHTTP2-497202
  • published 13 Aug 2019
  • disclosed 13 Aug 2019

How to fix?

Upgrade Alpine:3.8 nghttp2 to version 1.39.2-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nghttp2 package and not the nghttp2 package as distributed by Alpine. See How to fix? for Alpine:3.8 relevant fixed versions and status.

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