CVE-2018-20679
7.5
HIGH
CVSS 3.1
EPSS 13.0%
Description
An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.
How to fix CVE-2018-20679
To remediate CVE-2018-20679, upgrade the affected package to a fixed version below.
- —upgrade to 1.29.3-r10 or later
- —upgrade to 1:1.30.1-1 or later
Is CVE-2018-20679 being exploited?
Moderate — EPSS is 13.0%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 1.29.3-r10
- from 0, < 1:1.30.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |