busybox: A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell comman...
CVE-2021-42376 is fixed in busybox on 1 platform, first by DEBIAN-CVE-2021-42376, released November 15, 2021. It is not reported as exploited. Patch Radar priority: Routine.
A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very 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-2021-42376 | Nov 15, 2021 |
| busybox · Debian 13.5 (trixie) | 1:1.35.0-1 | DEBIAN-CVE-2021-42376 | Nov 15, 2021 |
| busybox · Debian 14 | 1:1.35.0-1 | DEBIAN-CVE-2021-42376 | Nov 15, 2021 |
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