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CVE-2016-2147

Published: 9 February 2017

Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds heap write.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
busybox
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(1:1.27.2-1ubuntu3)
cosmic Not vulnerable
(1:1.27.2-1ubuntu3)
disco Not vulnerable
(1:1.27.2-1ubuntu3)
eoan Not vulnerable
(1:1.27.2-1ubuntu3)
focal Not vulnerable
(1:1.27.2-1ubuntu3)
precise Ignored
(end of life)
trusty
Released (1:1.21.0-1ubuntu1.4)
upstream
Released (1:1.27.2-1)
wily Ignored
(end of life)
xenial
Released (1:1.22.0-15ubuntu1.4)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
groovy Not vulnerable
(1:1.27.2-1ubuntu3)
hirsute Not vulnerable
(1:1.27.2-1ubuntu3)
Patches:
upstream: https://git.busybox.net/busybox/commit/?id=d474ffc68290e0a83651c4432eeabfa62cd51e87
upstream: https://git.busybox.net/busybox/commit/?id=1b7c17391de66502dd7a97c866e0a33681edbb1f
Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H