Medium: curl

Issue Overview:

This flaw allows a malicious HTTP server to set “super cookies” in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl’s function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lowercase hostname curl.co.uk, even though co.uk is listed as a PSL domain. (CVE-2023-46218)

Affected Packages:

curl

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 curl to update your system.

New Packages:

aarch64:  
    curl-8.3.0-1.amzn2.0.6.aarch64  
    libcurl-8.3.0-1.amzn2.0.6.aarch64  
    libcurl-devel-8.3.0-1.amzn2.0.6.aarch64  
    curl-debuginfo-8.3.0-1.amzn2.0.6.aarch64  
  
i686:  
    curl-8.3.0-1.amzn2.0.6.i686  
    libcurl-8.3.0-1.amzn2.0.6.i686  
    libcurl-devel-8.3.0-1.amzn2.0.6.i686  
    curl-debuginfo-8.3.0-1.amzn2.0.6.i686  
  
src:  
    curl-8.3.0-1.amzn2.0.6.src  
  
x86_64:  
    curl-8.3.0-1.amzn2.0.6.x86_64  
    libcurl-8.3.0-1.amzn2.0.6.x86_64  
    libcurl-devel-8.3.0-1.amzn2.0.6.x86_64  
    curl-debuginfo-8.3.0-1.amzn2.0.6.x86_64  

Additional References

Red Hat: CVE-2023-46218

Mitre: CVE-2023-46218