<p>Upgrade <code>Amazon-Linux:2</code> <code>libnghttp2</code> to version 0:1.31.1-1.amzn2 or higher.<br>This issue was patched in <code>ALAS2-2018-1020</code>.</p>

Improper Input Validation Affecting libnghttp2 package, versions <0:1.31.1-1.amzn2

Snyk CVSS

Attack Complexity High

Availability High

Threat Intelligence

EPSS 4.18% (93^rd percentile)

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Snyk ID SNYK-AMZN2-LIBNGHTTP2-1662586
published 27 Sep 2021
disclosed 8 May 2018

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Introduced: 8 May 2018

CVE-2018-1000168 Open this link in a new tab CWE-20 Open this link in a new tab CWE-476 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 libnghttp2 to version 0:1.31.1-1.amzn2 or higher.
This issue was patched in ALAS2-2018-1020.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libnghttp2 package and not the libnghttp2 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability appears to have been fixed in >= 1.31.1.