CVE-2019-5747

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
mitreCNA
---
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CVEADP
---
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CISA-ADPADP
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 58%
VendorProductVersion
busyboxbusybox
𝑥
≤ 1.30.0
canonicalubuntu_linux
14.04
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
18.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
busybox
bullseye
1:1.30.1-6
fixed
buster
not-affected
stretch
not-affected
jessie
not-affected
bookworm
1:1.35.0-4
fixed
sid
1:1.37.0-4
fixed
trixie
1:1.37.0-4
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
busybox
hirsute
Fixed 1:1.27.2-2ubuntu5
released
groovy
Fixed 1:1.27.2-2ubuntu5
released
focal
Fixed 1:1.27.2-2ubuntu5
released
eoan
Fixed 1:1.27.2-2ubuntu5
released
disco
Fixed 1:1.27.2-2ubuntu5
released
cosmic
Fixed 1:1.27.2-2ubuntu4.1
released
bionic
Fixed 1:1.27.2-2ubuntu3.2
released
xenial
Fixed 1:1.22.0-15ubuntu1.4
released
trusty
Fixed 1:1.21.0-1ubuntu1.4
released
Common Weakness Enumeration
References
http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
http://seclists.org/fulldisclosure/2019/Sep/7
https://bugs.busybox.net/show_bug.cgi?id=11506
https://git.busybox.net/busybox/commit/?id=74d9f1ba37010face4bd1449df4d60dd84450b06
https://seclists.org/bugtraq/2019/Sep/7
https://usn.ubuntu.com/3935-1/
http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
http://seclists.org/fulldisclosure/2019/Sep/7
https://bugs.busybox.net/show_bug.cgi?id=11506
https://git.busybox.net/busybox/commit/?id=74d9f1ba37010face4bd1449df4d60dd84450b06
https://seclists.org/bugtraq/2019/Sep/7
https://usn.ubuntu.com/3935-1/