CVE-2018-1000517

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 32.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-06-26 · updated 2026-06-17
Weakness: CWE-120

Description

BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a Buffer Overflow vulnerability in Busybox wget that can result in heap buffer overflow. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in after commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e.

Affected products

busybox: before 1.29.0 — fixed in 1.29.0
Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 18.10
Debian Linux: 8.0, 9.0

How to fix

Upgrade to a fixed version: busybox 1.29.0. Check the vendor advisory for mitigations.

References

https://git.busybox.net/busybox/commit/?id=8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e
https://lists.debian.org/debian-lts-announce/2018/07/msg00037.html
https://lists.debian.org/debian-lts-announce/2021/02/msg00020.html
https://usn.ubuntu.com/3935-1/
https://git.busybox.net/busybox/commit/?id=8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e
https://lists.debian.org/debian-lts-announce/2018/07/msg00037.html
https://lists.debian.org/debian-lts-announce/2021/02/msg00020.html
https://usn.ubuntu.com/3935-1/

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