cve/2021/CVE-2021-42386.md

CVE-2021-42386

Description

A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the nvalloc function

POC

Reference

• https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog
• https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/

Github

• https://github.com/isgo-golgo13/gokit-gorillakit-enginesvc