Description
A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AWK script.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| BusyBox | BusyBox | 1.00 – ≤ 1.38.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | busybox | 1:1.38.0-3 | — |
| Debian 13 | busybox | No fix yet | — |
| Debian 12 | busybox | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | busybox | No fix yet | — |
| Ubuntu 26.04 LTS | busybox | No fix yet | — |
| Ubuntu 24.04 LTS | busybox | No fix yet | — |
| Ubuntu 22.04 LTS | busybox | No fix yet | — |
| Ubuntu 20.04 LTS | busybox | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | busybox | No fix yet | — |
| Ubuntu Pro 16.04 LTS | busybox | No fix yet | — |
| Ubuntu Pro 14.04 LTS | busybox | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | busybox +2 | 1.37.0-8.2.hum1 | RHSA-2026:42074 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | busybox | 1.37.0-150700.18.21.1 | SUSE-SU-2026:3933-1 |
| SLES 12 SP5 | busybox | 1.35.0-10.9.1 | SUSE-SU-2026:3900-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | busybox | 1.37.0-160000.7.1 | SUSE-SU-2026:24154-1 |
| SLES 16.0 | busybox | 1.37.0-160000.7.1 | SUSE-SU-2026:24154-1 |
| SLE Micro 6.0 | busybox | 1.36.1-5.1 | SUSE-SU-2026:23446-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | busybox | 1.38.0-2.1 | openSUSE-SU-2026:11605-1 |
| openSUSE Leap 16.0 | busybox | 1.37.0-160000.7.1 | openSUSE-SU-2026:22040-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | busybox | 1.36.1-26 | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | busybox +2 | 1.38.0-r1 | — |
Advisories 8
- SUSE-SU-2026:24154-1 Security update for busybox SUSE / openSUSE Security Updates · Oct 16, 2026
- WID-SEC-2026-2386 BusyBox: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Oct 15, 2026
- openSUSE-SU-2026:22040-1 Security update for busybox SUSE / openSUSE Security Updates · Oct 9, 2026
- RHSA-2026:42074 Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update Red Hat Security Advisories (RHSA) · Oct 6, 2026
- SUSE-SU-2026:23446-1 Security update for busybox SUSE / openSUSE Security Updates · Sep 14, 2026
- SUSE-SU-2026:3900-1 Security update for busybox SUSE / openSUSE Security Updates · Sep 10, 2026
- SUSE-SU-2026:3933-1 Security update for busybox SUSE / openSUSE Security Updates · Sep 10, 2026
- openSUSE-SU-2026:11605-1 busybox-1.38.0-2.1 on GA media SUSE / openSUSE Security Updates · Aug 27, 2026