busybox: An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution w...
CVE-2021-42377 is fixed in busybox on 1 platform, first by DEBIAN-CVE-2021-42377, released November 15, 2021. It is not reported as exploited. Patch Radar priority: Urgent.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| busybox · Debian 12.15 (bookworm) | 1:1.35.0-1 | DEBIAN-CVE-2021-42377 | Nov 15, 2021 |
| busybox · Debian 13.5 (trixie) | 1:1.35.0-1 | DEBIAN-CVE-2021-42377 | Nov 15, 2021 |
| busybox · Debian 14 | 1:1.35.0-1 | DEBIAN-CVE-2021-42377 | Nov 15, 2021 |
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