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OpenAdvisories
High ALAS2-2024-2523 1 CVE

Important: nghttp2 security update (Amazon Linux 2)

Published Apr 24, 2024 · Updated Apr 24, 2024

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2024-28182: nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage to decode HPACK stream. nghttp2 v1.61.0 mitigates this vulnerability by limiting the number of CONTINUATION frames it accepts per stream. There is no workaround for this vulnerability.

Fixed packages 4

ReleasePackageFixed in
Amazon Linux · 2 libnghttp2 0:1.41.0-1.amzn2.0.5
Amazon Linux · 2 libnghttp2-devel 0:1.41.0-1.amzn2.0.5
Amazon Linux · 2 nghttp2 0:1.41.0-1.amzn2.0.5
Amazon Linux · 2 nghttp2-debuginfo 0:1.41.0-1.amzn2.0.5

Vulnerabilities 1

  • Medium 5.3
    CVE-2024-28182 EPSS 82%

    Reading unbounded number of HTTP/2 CONTINUATION frames to cause excessive CPU usage

    nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This cause…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-28182.html