Important: libxml2

Issue Overview:

libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor’s position is “I don’t think these issues are critical enough to warrant a CVE ID … because an attacker typically can’t control when memory allocations fail.” (CVE-2023-45322)

Affected Packages:

libxml2

Issue Correction:
Run yum update libxml2 to update your system.

New Packages:

i686:  
    libxml2-static-2.9.1-6.6.44.amzn1.i686  
    libxml2-devel-2.9.1-6.6.44.amzn1.i686  
    libxml2-python26-2.9.1-6.6.44.amzn1.i686  
    libxml2-python27-2.9.1-6.6.44.amzn1.i686  
    libxml2-2.9.1-6.6.44.amzn1.i686  
    libxml2-debuginfo-2.9.1-6.6.44.amzn1.i686  
  
src:  
    libxml2-2.9.1-6.6.44.amzn1.src  
  
x86_64:  
    libxml2-python26-2.9.1-6.6.44.amzn1.x86_64  
    libxml2-devel-2.9.1-6.6.44.amzn1.x86_64  
    libxml2-debuginfo-2.9.1-6.6.44.amzn1.x86_64  
    libxml2-python27-2.9.1-6.6.44.amzn1.x86_64  
    libxml2-2.9.1-6.6.44.amzn1.x86_64  
    libxml2-static-2.9.1-6.6.44.amzn1.x86_64  

Additional References

Red Hat: CVE-2023-45322

Mitre: CVE-2023-45322