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OpenAdvisories
High ALAS2023-2024-592 1 CVE

Important: nghttp2 security update (Amazon Linux 2023)

Published Apr 25, 2024 · Updated Apr 25, 2024

Summary

Package updates are available for Amazon Linux 2023 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 6

ReleasePackageFixed in
Amazon Linux · 2023 libnghttp2 0:1.59.0-3.amzn2023.0.1
Amazon Linux · 2023 libnghttp2-debuginfo 0:1.59.0-3.amzn2023.0.1
Amazon Linux · 2023 libnghttp2-devel 0:1.59.0-3.amzn2023.0.1
Amazon Linux · 2023 nghttp2 0:1.59.0-3.amzn2023.0.1
Amazon Linux · 2023 nghttp2-debuginfo 0:1.59.0-3.amzn2023.0.1
Amazon Linux · 2023 nghttp2-debugsource 0:1.59.0-3.amzn2023.0.1

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