Login Request a demo
High severity · published Jan 9, 2019
CVE-2019-5747
An issue was discovered in BusyBox through 1.30.0
7.5
CVSS
4.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.7% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BU
Busybox · Busybox
through 1.30.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 18.10 · source: NVD
Affected product
BU
Busybox
Busybox
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-5747
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-5747
Exploit
http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
Mailing List
http://seclists.org/fulldisclosure/2019/Sep/7
Exploit
https://bugs.busybox.net/show_bug.cgi?id=11506
Patch
https://git.busybox.net/busybox/commit/?id=74d9f1ba37010face4bd1449df4d60dd84450b06
Mailing List
https://seclists.org/bugtraq/2019/Sep/7
Third Party Advisory
https://usn.ubuntu.com/3935-1/
More from Busybox
9.8
CVE-2022-48174
There is a stack overflow vulnerability in ash.c:6030 in busybox before 1.35
9.8
CVE-2021-42377
An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell…
9.8
CVE-2018-1000517
BusyBox project BusyBox wget version prior to commit 8e2174e9bd836e53c8b9c6e00d1bc6e2a718686e contains a Buffer Overflow vulnerability in Busybox wget that can result in heap…
9.8
CVE-2016-2148
Heap-based buffer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to have unspecified impact via vectors involving OPTION_6RD parsing
8.8
CVE-2022-28391
BusyBox through 1.35.0 allows remote attackers to execute arbitrary code if netstat is used to print a DNS PTR record's value to a VT compatible terminal