An incorrect handling of a special element in ash leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.
Read more: “Unboxing Busybox: 14 Vulnerabilities Uncovered by Claroty, JFrog”

Risk Information

  • CVE ID
  • CVE-2021-42375
  • Vendor
  • Busybox
  • Product
  • Linux Utilities
  • CVSS v3
  • 4.1