Important: nghttp2

Issue Overview:

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. (CVE-2024-28182)

Affected Packages:

nghttp2

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update nghttp2 to update your system.

New Packages:

aarch64:  
    nghttp2-1.41.0-1.amzn2.0.5.aarch64  
    libnghttp2-1.41.0-1.amzn2.0.5.aarch64  
    libnghttp2-devel-1.41.0-1.amzn2.0.5.aarch64  
    nghttp2-debuginfo-1.41.0-1.amzn2.0.5.aarch64  
  
i686:  
    nghttp2-1.41.0-1.amzn2.0.5.i686  
    libnghttp2-1.41.0-1.amzn2.0.5.i686  
    libnghttp2-devel-1.41.0-1.amzn2.0.5.i686  
    nghttp2-debuginfo-1.41.0-1.amzn2.0.5.i686  
  
src:  
    nghttp2-1.41.0-1.amzn2.0.5.src  
  
x86_64:  
    nghttp2-1.41.0-1.amzn2.0.5.x86_64  
    libnghttp2-1.41.0-1.amzn2.0.5.x86_64  
    libnghttp2-devel-1.41.0-1.amzn2.0.5.x86_64  
    nghttp2-debuginfo-1.41.0-1.amzn2.0.5.x86_64  

Additional References

Red Hat: CVE-2024-28182

Mitre: CVE-2024-28182