CVE-2021-42377

Description

An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.

Affected Platforms

Weakness Type

CWE-590, CWE-763

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…