Medium: cni-plugins

Issue Overview:

An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request’s headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection. (CVE-2023-45288)

Affected Packages:

cni-plugins

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 cni-plugins to update your system.

New Packages:

aarch64:  
    cni-plugins-1.2.0-1.amzn2.0.6.aarch64  
    cni-plugins-debuginfo-1.2.0-1.amzn2.0.6.aarch64  
  
src:  
    cni-plugins-1.2.0-1.amzn2.0.6.src  
  
x86_64:  
    cni-plugins-1.2.0-1.amzn2.0.6.x86_64  
    cni-plugins-debuginfo-1.2.0-1.amzn2.0.6.x86_64  

Additional References

Red Hat: CVE-2023-45288

Mitre: CVE-2023-45288