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Vulnerability Details : CVE-2018-20679

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.
Publish Date : 2019-01-09 Last Update Date : 2019-09-04
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 125

- Products Affected By CVE-2018-20679

# Product Type Vendor Product Version Update Edition Language
1 Application Busybox Busybox - Version Details Vulnerabilities
2 Application Busybox Busybox 0.38 Version Details Vulnerabilities
3 Application Busybox Busybox 0.39 Version Details Vulnerabilities
4 Application Busybox Busybox 0.40 Version Details Vulnerabilities
5 Application Busybox Busybox 0.41 Version Details Vulnerabilities
6 Application Busybox Busybox 0.42 Version Details Vulnerabilities
7 Application Busybox Busybox 0.43 Version Details Vulnerabilities
8 Application Busybox Busybox 0.43 PRE Version Details Vulnerabilities
9 Application Busybox Busybox 0.45 Version Details Vulnerabilities
10 Application Busybox Busybox 0.46 Version Details Vulnerabilities
11 Application Busybox Busybox 0.47 Version Details Vulnerabilities
12 Application Busybox Busybox 0.48 Version Details Vulnerabilities
13 Application Busybox Busybox 0.49 Version Details Vulnerabilities
14 Application Busybox Busybox 0.50 Version Details Vulnerabilities
15 Application Busybox Busybox 0.51 Version Details Vulnerabilities
16 Application Busybox Busybox 0.52 Version Details Vulnerabilities
17 Application Busybox Busybox 0.60.0 Version Details Vulnerabilities
18 Application Busybox Busybox 0.60.1 Version Details Vulnerabilities
19 Application Busybox Busybox 0.60.2 Version Details Vulnerabilities
20 Application Busybox Busybox 0.60.3 Version Details Vulnerabilities
21 Application Busybox Busybox 0.60.4 Version Details Vulnerabilities
22 Application Busybox Busybox 0.60.5 Version Details Vulnerabilities
23 Application Busybox Busybox 1.00 Version Details Vulnerabilities
24 Application Busybox Busybox 1.0.0 Pre9 Version Details Vulnerabilities
25 Application Busybox Busybox 1.0.0 Pre4 Version Details Vulnerabilities
26 Application Busybox Busybox 1.0.0 RC1 Version Details Vulnerabilities
27 Application Busybox Busybox 1.0.0 Pre5 Version Details Vulnerabilities
28 Application Busybox Busybox 1.0.0 Pre1 Version Details Vulnerabilities
29 Application Busybox Busybox 1.0.0 RC2 Version Details Vulnerabilities
30 Application Busybox Busybox 1.0.0 Pre6 Version Details Vulnerabilities
31 Application Busybox Busybox 1.0.0 Pre10 Version Details Vulnerabilities
32 Application Busybox Busybox 1.0.0 RC3 Version Details Vulnerabilities
33 Application Busybox Busybox 1.0.0 Pre7 Version Details Vulnerabilities
34 Application Busybox Busybox 1.0.0 Pre2 Version Details Vulnerabilities
35 Application Busybox Busybox 1.0.0 Pre8 Version Details Vulnerabilities
36 Application Busybox Busybox 1.0.0 Pre3 Version Details Vulnerabilities
37 Application Busybox Busybox 1.01 Version Details Vulnerabilities
38 Application Busybox Busybox 1.1.0 Pre1 Version Details Vulnerabilities
39 Application Busybox Busybox 1.1.0 Version Details Vulnerabilities
40 Application Busybox Busybox 1.1.1 Version Details Vulnerabilities
41 Application Busybox Busybox 1.1.2 Version Details Vulnerabilities
42 Application Busybox Busybox 1.1.3 Version Details Vulnerabilities
43 Application Busybox Busybox 1.2.0 Version Details Vulnerabilities
44 Application Busybox Busybox 1.2.1 Version Details Vulnerabilities
45 Application Busybox Busybox 1.2.2 Version Details Vulnerabilities
46 Application Busybox Busybox 1.2.2.1 Version Details Vulnerabilities
47 Application Busybox Busybox 1.3.0 Version Details Vulnerabilities
48 Application Busybox Busybox 1.3.1 Version Details Vulnerabilities
49 Application Busybox Busybox 1.3.2 Version Details Vulnerabilities
50 Application Busybox Busybox 1.4.0 Version Details Vulnerabilities
51 Application Busybox Busybox 1.4.1 Version Details Vulnerabilities
52 Application Busybox Busybox 1.4.2 Version Details Vulnerabilities
53 Application Busybox Busybox 1.5.0 Version Details Vulnerabilities
54 Application Busybox Busybox 1.5.1 Version Details Vulnerabilities
55 Application Busybox Busybox 1.5.2 Version Details Vulnerabilities
56 Application Busybox Busybox 1.6.0 Version Details Vulnerabilities
57 Application Busybox Busybox 1.6.1 Version Details Vulnerabilities
58 Application Busybox Busybox 1.6.2 Version Details Vulnerabilities
59 Application Busybox Busybox 1.7.0 Version Details Vulnerabilities
60 Application Busybox Busybox 1.7.1 Version Details Vulnerabilities
61 Application Busybox Busybox 1.7.2 Version Details Vulnerabilities
62 Application Busybox Busybox 1.7.3 Version Details Vulnerabilities
63 Application Busybox Busybox 1.7.4 Version Details Vulnerabilities
64 Application Busybox Busybox 1.7.5 Version Details Vulnerabilities
65 Application Busybox Busybox 1.8.0 Version Details Vulnerabilities
66 Application Busybox Busybox 1.8.1 Version Details Vulnerabilities
67 Application Busybox Busybox 1.8.2 Version Details Vulnerabilities
68 Application Busybox Busybox 1.8.3 Version Details Vulnerabilities
69 Application Busybox Busybox 1.9.0 Version Details Vulnerabilities
70 Application Busybox Busybox 1.9.1 Version Details Vulnerabilities
71 Application Busybox Busybox 1.9.2 Version Details Vulnerabilities
72 Application Busybox Busybox 1.10.0 Version Details Vulnerabilities
73 Application Busybox Busybox 1.10.1 Version Details Vulnerabilities
74 Application Busybox Busybox 1.10.2 Version Details Vulnerabilities
75 Application Busybox Busybox 1.10.3 Version Details Vulnerabilities
76 Application Busybox Busybox 1.10.4 Version Details Vulnerabilities
77 Application Busybox Busybox 1.11.0 Version Details Vulnerabilities
78 Application Busybox Busybox 1.11.1 Version Details Vulnerabilities
79 Application Busybox Busybox 1.11.2 Version Details Vulnerabilities
80 Application Busybox Busybox 1.11.3 Version Details Vulnerabilities
81 Application Busybox Busybox 1.12.0 Version Details Vulnerabilities
82 Application Busybox Busybox 1.12.1 Version Details Vulnerabilities
83 Application Busybox Busybox 1.12.2 Version Details Vulnerabilities
84 Application Busybox Busybox 1.12.3 Version Details Vulnerabilities
85 Application Busybox Busybox 1.12.4 Version Details Vulnerabilities
86 Application Busybox Busybox 1.13.0 Version Details Vulnerabilities
87 Application Busybox Busybox 1.13.1 Version Details Vulnerabilities
88 Application Busybox Busybox 1.13.2 Version Details Vulnerabilities
89 Application Busybox Busybox 1.13.3 Version Details Vulnerabilities
90 Application Busybox Busybox 1.13.4 Version Details Vulnerabilities
91 Application Busybox Busybox 1.14.0 Version Details Vulnerabilities
92 Application Busybox Busybox 1.14.1 Version Details Vulnerabilities
93 Application Busybox Busybox 1.14.2 Version Details Vulnerabilities
94 Application Busybox Busybox 1.14.3 Version Details Vulnerabilities
95 Application Busybox Busybox 1.14.4 Version Details Vulnerabilities
96 Application Busybox Busybox 1.15.0 Version Details Vulnerabilities
97 Application Busybox Busybox 1.15.1 Version Details Vulnerabilities
98 Application Busybox Busybox 1.15.2 Version Details Vulnerabilities
99 Application Busybox Busybox 1.15.3 Version Details Vulnerabilities
100 Application Busybox Busybox 1.16.0 Version Details Vulnerabilities
101 Application Busybox Busybox 1.16.1 Version Details Vulnerabilities
102 Application Busybox Busybox 1.16.2 Version Details Vulnerabilities
103 Application Busybox Busybox 1.17.0 Version Details Vulnerabilities
104 Application Busybox Busybox 1.17.1 Version Details Vulnerabilities
105 Application Busybox Busybox 1.17.2 Version Details Vulnerabilities
106 Application Busybox Busybox 1.17.3 Version Details Vulnerabilities
107 Application Busybox Busybox 1.17.4 Version Details Vulnerabilities
108 Application Busybox Busybox 1.18.0 Version Details Vulnerabilities
109 Application Busybox Busybox 1.18.1 Version Details Vulnerabilities
110 Application Busybox Busybox 1.18.2 Version Details Vulnerabilities
111 Application Busybox Busybox 1.18.3 Version Details Vulnerabilities
112 Application Busybox Busybox 1.18.4 Version Details Vulnerabilities
113 Application Busybox Busybox 1.18.5 Version Details Vulnerabilities
114 Application Busybox Busybox 1.19.0 Version Details Vulnerabilities
115 Application Busybox Busybox 1.19.1 Version Details Vulnerabilities
116 Application Busybox Busybox 1.19.2 Version Details Vulnerabilities
117 Application Busybox Busybox 1.19.3 Version Details Vulnerabilities
118 Application Busybox Busybox 1.19.4 Version Details Vulnerabilities
119 Application Busybox Busybox 1.20.0 Version Details Vulnerabilities
120 Application Busybox Busybox 1.20.1 Version Details Vulnerabilities
121 Application Busybox Busybox 1.20.2 Version Details Vulnerabilities
122 Application Busybox Busybox 1.21.0 Version Details Vulnerabilities
123 Application Busybox Busybox 1.21.1 Version Details Vulnerabilities
124 Application Busybox Busybox 1.22.0 Version Details Vulnerabilities
125 Application Busybox Busybox 1.22.1 Version Details Vulnerabilities
126 Application Busybox Busybox 1.23.0 Version Details Vulnerabilities
127 Application Busybox Busybox 1.23.1 Version Details Vulnerabilities
128 Application Busybox Busybox 1.23.2 Version Details Vulnerabilities
129 Application Busybox Busybox 1.24.0 Version Details Vulnerabilities
130 Application Busybox Busybox 1.24.1 Version Details Vulnerabilities
131 Application Busybox Busybox 1.24.2 Version Details Vulnerabilities
132 Application Busybox Busybox 1.25.0 Version Details Vulnerabilities
133 Application Busybox Busybox 1.25.1 Version Details Vulnerabilities
134 Application Busybox Busybox 1.26.0 Version Details Vulnerabilities
135 Application Busybox Busybox 1.26.1 Version Details Vulnerabilities
136 Application Busybox Busybox 1.26.2 Version Details Vulnerabilities
137 Application Busybox Busybox 1.27.0 Version Details Vulnerabilities
138 Application Busybox Busybox 1.27.1 Version Details Vulnerabilities
139 Application Busybox Busybox 1.27.2 Version Details Vulnerabilities
140 Application Busybox Busybox 1.28.0 Version Details Vulnerabilities
141 Application Busybox Busybox 1.28.1 Version Details Vulnerabilities
142 Application Busybox Busybox 1.28.2 Version Details Vulnerabilities
143 Application Busybox Busybox 1.28.3 Version Details Vulnerabilities
144 Application Busybox Busybox 1.28.4 Version Details Vulnerabilities
145 Application Busybox Busybox 1.29.0 Version Details Vulnerabilities
146 Application Busybox Busybox 1.29.1 Version Details Vulnerabilities
147 Application Busybox Busybox 1.29.2 Version Details Vulnerabilities
148 Application Busybox Busybox 1.29.3 Version Details Vulnerabilities
149 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
150 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
151 OS Canonical Ubuntu Linux 18.04 ~~lts~~~ Version Details Vulnerabilities
152 OS Canonical Ubuntu Linux 18.10 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Busybox Busybox 148
Canonical Ubuntu Linux 4

- References For CVE-2018-20679

https://usn.ubuntu.com/3935-1/
UBUNTU USN-3935-1
https://busybox.net/news.html
https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c
https://seclists.org/bugtraq/2019/Sep/7
BUGTRAQ 20190904 SEC Consult SA-20190904-0 :: Multiple vulnerabilities in Cisco router series RV34X, RV26X and RV16X
https://bugs.busybox.net/show_bug.cgi?id=11506
http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
http://seclists.org/fulldisclosure/2019/Sep/7
FULLDISC 20190904 SEC Consult SA-20190904-0 :: Multiple vulnerabilities in Cisco router series RV34X, RV26X and RV16X

- Metasploit Modules Related To CVE-2018-20679

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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