CVE-2021-42375

Description

An incorrect handling of a special element in Busybox's ash applet 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.

Affected Platforms

Weakness Type

CWE-159, NVD-CWE-Other

References

• https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovere…
• https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-clar…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
• https://security.netapp.com/advisory/ntap-20211223-0002/
• https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovere…