CVE-2019-5747
7.5
HIGH
CVSS 3.1
EPSS 0.79%
Description
An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679.
How to fix CVE-2019-5747
To remediate CVE-2019-5747, upgrade the affected package to a fixed version below.
- —upgrade to 1.30.1-r2 or later
- —upgrade to 1:1.30.1-2 or later
Is CVE-2019-5747 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.30.1-r2
- from 0, < 1:1.30.1-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |