CVE-2021-42375
Fixed in a distro release EPSS <1%CVSS 5.5
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.
Products: busybox
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.13 | busybox | 1.32.1-r7 |
| Alpine 3.14 | busybox | 1.33.1-r5 |
| Alpine 3.15 | busybox | 1.34.0-r0 |
| Alpine 3.16 | busybox | 1.34.0-r0 |
| Alpine 3.17 | busybox | 1.34.0-r0 |
| Alpine 3.18 | busybox | 1.34.0-r0 |
| Alpine 3.19 | busybox | 1.34.0-r0 |
| Alpine 3.20 | busybox | 1.34.0-r0 |
| Alpine 3.21 | busybox | 1.34.0-r0 |
| Alpine 3.22 | busybox | 1.34.0-r0 |
| Alpine 3.23 | busybox | 1.34.0-r0 |
| Alpine 3.24 | busybox | 1.34.0-r0 |
| Arch Linux | busybox | 1.34.1-1 |
| Arch Linux | mkinitcpio-busybox | 1.34.1-1 |
| Debian 12 | busybox | 1:1.35.0-1 |
| Debian 13 | busybox | 1:1.35.0-1 |
| Debian 14 | busybox | 1:1.35.0-1 |
| SUSE Enterprise Storage 6 | busybox | 1.34.1-4.9.1 |
| SUSE Enterprise Storage 7 | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | busybox | 1.35.0-150400.3.3.1 |
| SUSE Linux Enterprise Real Time 15 SP2 | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | busybox | 1.35.0-4.3.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | busybox | 1.35.0-4.3.1 |
| SUSE Linux Enterprise Server 12 SP4-LTSS | busybox | 1.35.0-4.3.1 |
| SUSE Linux Enterprise Server 12 SP5 | busybox | 1.35.0-4.3.1 |
| SUSE Linux Enterprise Server 15 SP1-BCL | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Server 15 SP2-BCL | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Server 15 SP2-LTSS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Server 15-LTSS | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | busybox | 1.35.0-4.3.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | busybox | 1.35.0-4.3.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | busybox | 1.34.1-4.9.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | busybox | 1.34.1-4.9.1 |
| SUSE Manager Proxy 4.1 | busybox | 1.34.1-4.9.1 |
| SUSE Manager Retail Branch Server 4.1 | busybox | 1.34.1-4.9.1 |
| SUSE Manager Server 4.1 | busybox | 1.34.1-4.9.1 |
| SUSE OpenStack Cloud 9 | busybox | 1.35.0-4.3.1 |
| SUSE OpenStack Cloud Crowbar 9 | busybox | 1.35.0-4.3.1 |
| openSUSE Leap 15.3 | busybox | 1.34.1-4.9.1 |
| openSUSE Leap 15.3 | virtualbox | 6.1.34-lp153.2.27.2 |
| openSUSE Leap 15.3 | virtualbox-kmp | 6.1.34-lp153.2.27.1 |
| openSUSE Leap 15.4 | busybox | 1.35.0-150400.3.3.1 |