Medium: libfastjson

Issue Overview:

A flaw was found in json-c. In printbuf_memappend, certain crafted values can overflow the memory allowing an attacker to write past the memory boundary. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-12762)

Affected Packages:

libfastjson

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 libfastjson to update your system.

New Packages:

aarch64:  
    libfastjson-0.99.4-3.amzn2.0.1.aarch64  
    libfastjson-devel-0.99.4-3.amzn2.0.1.aarch64  
    libfastjson-debuginfo-0.99.4-3.amzn2.0.1.aarch64  
  
i686:  
    libfastjson-0.99.4-3.amzn2.0.1.i686  
    libfastjson-devel-0.99.4-3.amzn2.0.1.i686  
    libfastjson-debuginfo-0.99.4-3.amzn2.0.1.i686  
  
src:  
    libfastjson-0.99.4-3.amzn2.0.1.src  
  
x86_64:  
    libfastjson-0.99.4-3.amzn2.0.1.x86_64  
    libfastjson-devel-0.99.4-3.amzn2.0.1.x86_64  
    libfastjson-debuginfo-0.99.4-3.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2020-12762

Mitre: CVE-2020-12762