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Vulnerability Details : CVE-2018-12020

mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.
Publish Date : 2018-06-08 Last Update Date : 2019-05-21
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
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)
CWE ID 19

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:2180: gnupg2 security update (Important) oval:com.redhat.rhsa:def:20182180 unix
RHSA-2018:2181: gnupg2 security update (Important) oval:com.redhat.rhsa:def:20182181 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-12020

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 ~~esm~~~ Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 ~~lts~~~ Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 16.04 ~~lts~~~ Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 17.10 Version Details Vulnerabilities
5 OS Canonical Ubuntu Linux 18.04 ~~lts~~~ Version Details Vulnerabilities
6 OS Canonical Ubuntu Linux 18.10 Version Details Vulnerabilities
7 OS Canonical Ubuntu Linux 19.04 Version Details Vulnerabilities
8 OS Debian Debian Linux 8.0 Version Details Vulnerabilities
9 OS Debian Debian Linux 9.0 Version Details Vulnerabilities
10 Application Gnupg Gnupg 0.0.0 - Version Details Vulnerabilities
11 Application Gnupg Gnupg 0.1.0 Version Details Vulnerabilities
12 Application Gnupg Gnupg 0.1.1 Version Details Vulnerabilities
13 Application Gnupg Gnupg 0.1.2 Version Details Vulnerabilities
14 Application Gnupg Gnupg 0.1.3 Version Details Vulnerabilities
15 Application Gnupg Gnupg 0.2.0 Version Details Vulnerabilities
16 Application Gnupg Gnupg 0.2.1 Version Details Vulnerabilities
17 Application Gnupg Gnupg 0.2.2 Version Details Vulnerabilities
18 Application Gnupg Gnupg 0.2.3 Version Details Vulnerabilities
19 Application Gnupg Gnupg 0.2.4 Version Details Vulnerabilities
20 Application Gnupg Gnupg 0.2.5 Version Details Vulnerabilities
21 Application Gnupg Gnupg 0.2.6 Version Details Vulnerabilities
22 Application Gnupg Gnupg 0.2.7 Version Details Vulnerabilities
23 Application Gnupg Gnupg 0.2.8 Version Details Vulnerabilities
24 Application Gnupg Gnupg 0.2.9 Version Details Vulnerabilities
25 Application Gnupg Gnupg 0.2.10 Version Details Vulnerabilities
26 Application Gnupg Gnupg 0.2.11 Version Details Vulnerabilities
27 Application Gnupg Gnupg 0.2.12 Version Details Vulnerabilities
28 Application Gnupg Gnupg 0.2.13 Version Details Vulnerabilities
29 Application Gnupg Gnupg 0.2.14 Version Details Vulnerabilities
30 Application Gnupg Gnupg 0.2.15 Version Details Vulnerabilities
31 Application Gnupg Gnupg 0.2.16 Version Details Vulnerabilities
32 Application Gnupg Gnupg 0.2.17 Version Details Vulnerabilities
33 Application Gnupg Gnupg 0.2.18 Version Details Vulnerabilities
34 Application Gnupg Gnupg 0.2.19 Version Details Vulnerabilities
35 Application Gnupg Gnupg 0.3.0 Version Details Vulnerabilities
36 Application Gnupg Gnupg 0.3.1 Version Details Vulnerabilities
37 Application Gnupg Gnupg 0.3.2 Version Details Vulnerabilities
38 Application Gnupg Gnupg 0.3.3 Version Details Vulnerabilities
39 Application Gnupg Gnupg 0.3.4 Version Details Vulnerabilities
40 Application Gnupg Gnupg 0.3.5 Version Details Vulnerabilities
41 Application Gnupg Gnupg 0.4.0 Version Details Vulnerabilities
42 Application Gnupg Gnupg 0.4.1 Version Details Vulnerabilities
43 Application Gnupg Gnupg 0.4.2 Version Details Vulnerabilities
44 Application Gnupg Gnupg 0.4.3 Version Details Vulnerabilities
45 Application Gnupg Gnupg 0.4.4 Version Details Vulnerabilities
46 Application Gnupg Gnupg 0.4.5 Version Details Vulnerabilities
47 Application Gnupg Gnupg 0.9.0 Version Details Vulnerabilities
48 Application Gnupg Gnupg 0.9.1 Version Details Vulnerabilities
49 Application Gnupg Gnupg 0.9.2 Version Details Vulnerabilities
50 Application Gnupg Gnupg 0.9.3 Version Details Vulnerabilities
51 Application Gnupg Gnupg 0.9.4 Version Details Vulnerabilities
52 Application Gnupg Gnupg 0.9.5 Version Details Vulnerabilities
53 Application Gnupg Gnupg 0.9.6 Version Details Vulnerabilities
54 Application Gnupg Gnupg 0.9.7 Version Details Vulnerabilities
55 Application Gnupg Gnupg 0.9.8 Version Details Vulnerabilities
56 Application Gnupg Gnupg 0.9.9 Version Details Vulnerabilities
57 Application Gnupg Gnupg 0.9.10 Version Details Vulnerabilities
58 Application Gnupg Gnupg 0.9.11 Version Details Vulnerabilities
59 Application Gnupg Gnupg 1.0.0 Version Details Vulnerabilities
60 Application Gnupg Gnupg 1.0.1 Version Details Vulnerabilities
61 Application Gnupg Gnupg 1.0.2 Version Details Vulnerabilities
62 Application Gnupg Gnupg 1.0.3 Version Details Vulnerabilities
63 Application Gnupg Gnupg 1.0.4 - Win32 Version Details Vulnerabilities
64 Application Gnupg Gnupg 1.0.4 Version Details Vulnerabilities
65 Application Gnupg Gnupg 1.0.5 Version Details Vulnerabilities
66 Application Gnupg Gnupg 1.0.5 - Win32 Version Details Vulnerabilities
67 Application Gnupg Gnupg 1.0.6 Version Details Vulnerabilities
68 Application Gnupg Gnupg 1.0.7 Version Details Vulnerabilities
69 Application Gnupg Gnupg 1.1.90 Version Details Vulnerabilities
70 Application Gnupg Gnupg 1.1.91 Version Details Vulnerabilities
71 Application Gnupg Gnupg 1.1.92 Version Details Vulnerabilities
72 Application Gnupg Gnupg 1.2.0 Version Details Vulnerabilities
73 Application Gnupg Gnupg 1.2.1 Windows Version Details Vulnerabilities
74 Application Gnupg Gnupg 1.2.1 Version Details Vulnerabilities
75 Application Gnupg Gnupg 1.2.2 Version Details Vulnerabilities
76 Application Gnupg Gnupg 1.2.3 Version Details Vulnerabilities
77 Application Gnupg Gnupg 1.2.4 Version Details Vulnerabilities
78 Application Gnupg Gnupg 1.2.5 Version Details Vulnerabilities
79 Application Gnupg Gnupg 1.2.6 Version Details Vulnerabilities
80 Application Gnupg Gnupg 1.2.7 Version Details Vulnerabilities
81 Application Gnupg Gnupg 1.2.8 Version Details Vulnerabilities
82 Application Gnupg Gnupg 1.3.0 Version Details Vulnerabilities
83 Application Gnupg Gnupg 1.3.1 Version Details Vulnerabilities
84 Application Gnupg Gnupg 1.3.2 Version Details Vulnerabilities
85 Application Gnupg Gnupg 1.3.3 Version Details Vulnerabilities
86 Application Gnupg Gnupg 1.3.4 Version Details Vulnerabilities
87 Application Gnupg Gnupg 1.3.6 Version Details Vulnerabilities
88 Application Gnupg Gnupg 1.3.90 Version Details Vulnerabilities
89 Application Gnupg Gnupg 1.3.91 Version Details Vulnerabilities
90 Application Gnupg Gnupg 1.3.92 Version Details Vulnerabilities
91 Application Gnupg Gnupg 1.3.93 Version Details Vulnerabilities
92 Application Gnupg Gnupg 1.4.0 Version Details Vulnerabilities
93 Application Gnupg Gnupg 1.4.1 Version Details Vulnerabilities
94 Application Gnupg Gnupg 1.4.2 Version Details Vulnerabilities
95 Application Gnupg Gnupg 1.4.3 Version Details Vulnerabilities
96 Application Gnupg Gnupg 1.4.4 Version Details Vulnerabilities
97 Application Gnupg Gnupg 1.4.5 Version Details Vulnerabilities
98 Application Gnupg Gnupg 1.4.6 Version Details Vulnerabilities
99 Application Gnupg Gnupg 1.4.7 Version Details Vulnerabilities
100 Application Gnupg Gnupg 1.4.8 Version Details Vulnerabilities
101 Application Gnupg Gnupg 1.4.9 Version Details Vulnerabilities
102 Application Gnupg Gnupg 1.4.10 Version Details Vulnerabilities
103 Application Gnupg Gnupg 1.4.11 Version Details Vulnerabilities
104 Application Gnupg Gnupg 1.4.12 Version Details Vulnerabilities
105 Application Gnupg Gnupg 1.4.13 Version Details Vulnerabilities
106 Application Gnupg Gnupg 1.4.14 Version Details Vulnerabilities
107 Application Gnupg Gnupg 1.4.15 Version Details Vulnerabilities
108 Application Gnupg Gnupg 1.4.16 Version Details Vulnerabilities
109 Application Gnupg Gnupg 1.4.17 Version Details Vulnerabilities
110 Application Gnupg Gnupg 1.4.18 Version Details Vulnerabilities
111 Application Gnupg Gnupg 1.4.19 Version Details Vulnerabilities
112 Application Gnupg Gnupg 1.4.23 Version Details Vulnerabilities
113 Application Gnupg Gnupg 1.9.0 Version Details Vulnerabilities
114 Application Gnupg Gnupg 1.9.1 Version Details Vulnerabilities
115 Application Gnupg Gnupg 1.9.2 Version Details Vulnerabilities
116 Application Gnupg Gnupg 1.9.3 Version Details Vulnerabilities
117 Application Gnupg Gnupg 1.9.4 Version Details Vulnerabilities
118 Application Gnupg Gnupg 1.9.5 Version Details Vulnerabilities
119 Application Gnupg Gnupg 1.9.6 Version Details Vulnerabilities
120 Application Gnupg Gnupg 1.9.7 Version Details Vulnerabilities
121 Application Gnupg Gnupg 1.9.8 Version Details Vulnerabilities
122 Application Gnupg Gnupg 1.9.9 Version Details Vulnerabilities
123 Application Gnupg Gnupg 1.9.10 Version Details Vulnerabilities
124 Application Gnupg Gnupg 1.9.11 Version Details Vulnerabilities
125 Application Gnupg Gnupg 1.9.12 Version Details Vulnerabilities
126 Application Gnupg Gnupg 1.9.13 Version Details Vulnerabilities
127 Application Gnupg Gnupg 1.9.14 Version Details Vulnerabilities
128 Application Gnupg Gnupg 1.9.15 Version Details Vulnerabilities
129 Application Gnupg Gnupg 1.9.16 Version Details Vulnerabilities
130 Application Gnupg Gnupg 1.9.17 Version Details Vulnerabilities
131 Application Gnupg Gnupg 1.9.18 Version Details Vulnerabilities
132 Application Gnupg Gnupg 1.9.19 Version Details Vulnerabilities
133 Application Gnupg Gnupg 1.9.20 Version Details Vulnerabilities
134 Application Gnupg Gnupg 1.9.21 Version Details Vulnerabilities
135 Application Gnupg Gnupg 1.9.22 Version Details Vulnerabilities
136 Application Gnupg Gnupg 1.9.23 Version Details Vulnerabilities
137 Application Gnupg Gnupg 1.9.90 Version Details Vulnerabilities
138 Application Gnupg Gnupg 1.9.91 Version Details Vulnerabilities
139 Application Gnupg Gnupg 1.9.92 Version Details Vulnerabilities
140 Application Gnupg Gnupg 1.9.93 Version Details Vulnerabilities
141 Application Gnupg Gnupg 1.9.94 Version Details Vulnerabilities
142 Application Gnupg Gnupg 1.9.95 Version Details Vulnerabilities
143 Application Gnupg Gnupg 2.0 Version Details Vulnerabilities
144 Application Gnupg Gnupg 2.0.0 Version Details Vulnerabilities
145 Application Gnupg Gnupg 2.0.1 Version Details Vulnerabilities
146 Application Gnupg Gnupg 2.0.2 Version Details Vulnerabilities
147 Application Gnupg Gnupg 2.0.3 Version Details Vulnerabilities
148 Application Gnupg Gnupg 2.0.4 Version Details Vulnerabilities
149 Application Gnupg Gnupg 2.0.5 Version Details Vulnerabilities
150 Application Gnupg Gnupg 2.0.6 Version Details Vulnerabilities
151 Application Gnupg Gnupg 2.0.7 Version Details Vulnerabilities
152 Application Gnupg Gnupg 2.0.8 Version Details Vulnerabilities
153 Application Gnupg Gnupg 2.0.9 Version Details Vulnerabilities
154 Application Gnupg Gnupg 2.0.10 Version Details Vulnerabilities
155 Application Gnupg Gnupg 2.0.11 Version Details Vulnerabilities
156 Application Gnupg Gnupg 2.0.12 Version Details Vulnerabilities
157 Application Gnupg Gnupg 2.0.13 Version Details Vulnerabilities
158 Application Gnupg Gnupg 2.0.14 Version Details Vulnerabilities
159 Application Gnupg Gnupg 2.0.15 Version Details Vulnerabilities
160 Application Gnupg Gnupg 2.0.16 Version Details Vulnerabilities
161 Application Gnupg Gnupg 2.0.17 Version Details Vulnerabilities
162 Application Gnupg Gnupg 2.0.18 Version Details Vulnerabilities
163 Application Gnupg Gnupg 2.0.19 Version Details Vulnerabilities
164 Application Gnupg Gnupg 2.0.20 Version Details Vulnerabilities
165 Application Gnupg Gnupg 2.0.21 Version Details Vulnerabilities
166 Application Gnupg Gnupg 2.0.22 Version Details Vulnerabilities
167 Application Gnupg Gnupg 2.0.23 Version Details Vulnerabilities
168 Application Gnupg Gnupg 2.0.24 Version Details Vulnerabilities
169 Application Gnupg Gnupg 2.0.25 Version Details Vulnerabilities
170 Application Gnupg Gnupg 2.0.26 Version Details Vulnerabilities
171 Application Gnupg Gnupg 2.0.27 Version Details Vulnerabilities
172 Application Gnupg Gnupg 2.0.28 Version Details Vulnerabilities
173 Application Gnupg Gnupg 2.1.0 Beta1 Version Details Vulnerabilities
174 Application Gnupg Gnupg 2.1.0 Version Details Vulnerabilities
175 Application Gnupg Gnupg 2.1.1 Version Details Vulnerabilities
176 Application Gnupg Gnupg 2.1.2 Version Details Vulnerabilities
177 Application Gnupg Gnupg 2.1.3 Version Details Vulnerabilities
178 Application Gnupg Gnupg 2.1.4 Version Details Vulnerabilities
179 Application Gnupg Gnupg 2.1.5 Version Details Vulnerabilities
180 Application Gnupg Gnupg 2.1.6 Version Details Vulnerabilities
181 Application Gnupg Gnupg 2.1.7 Version Details Vulnerabilities
182 Application Gnupg Gnupg 2.1.8 Version Details Vulnerabilities
183 Application Gnupg Gnupg 2.1.9 Version Details Vulnerabilities
184 Application Gnupg Gnupg 2.1.10 Version Details Vulnerabilities
185 Application Gnupg Gnupg 2.1.11 Version Details Vulnerabilities
186 Application Gnupg Gnupg 2.1.12 Version Details Vulnerabilities
187 Application Gnupg Gnupg 2.1.13 Version Details Vulnerabilities
188 Application Gnupg Gnupg 2.1.14 Version Details Vulnerabilities
189 Application Gnupg Gnupg 2.1.15 Version Details Vulnerabilities
190 Application Gnupg Gnupg 2.1.16 Version Details Vulnerabilities
191 Application Gnupg Gnupg 2.1.17 Version Details Vulnerabilities
192 Application Gnupg Gnupg 2.1.18 Version Details Vulnerabilities
193 Application Gnupg Gnupg 2.1.19 Version Details Vulnerabilities
194 Application Gnupg Gnupg 2.1.20 Version Details Vulnerabilities
195 Application Gnupg Gnupg 2.1.21 Version Details Vulnerabilities
196 Application Gnupg Gnupg 2.1.22 Version Details Vulnerabilities
197 OS Redhat Enterprise Linux Desktop 6.0 Version Details Vulnerabilities
198 OS Redhat Enterprise Linux Desktop 7.0 Version Details Vulnerabilities
199 OS Redhat Enterprise Linux Server 6.0 Version Details Vulnerabilities
200 OS Redhat Enterprise Linux Server 7.0 Version Details Vulnerabilities
201 OS Redhat Enterprise Linux Server Aus 7.6 Version Details Vulnerabilities
202 OS Redhat Enterprise Linux Server Eus 7.5 Version Details Vulnerabilities
203 OS Redhat Enterprise Linux Server Eus 7.6 Version Details Vulnerabilities
204 OS Redhat Enterprise Linux Server Tus 7.6 Version Details Vulnerabilities
205 OS Redhat Enterprise Linux Workstation 6.0 Version Details Vulnerabilities
206 OS Redhat Enterprise Linux Workstation 7.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 7
Debian Debian Linux 2
Gnupg Gnupg 187
Redhat Enterprise Linux Desktop 2
Redhat Enterprise Linux Server 2
Redhat Enterprise Linux Server Aus 1
Redhat Enterprise Linux Server Eus 2
Redhat Enterprise Linux Server Tus 1
Redhat Enterprise Linux Workstation 2

- References For CVE-2018-12020

https://usn.ubuntu.com/3675-2/
UBUNTU USN-3675-2
https://www.debian.org/security/2018/dsa-4223
DEBIAN DSA-4223
https://www.debian.org/security/2018/dsa-4222
DEBIAN DSA-4222
https://usn.ubuntu.com/3964-1/
UBUNTU USN-3964-1
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 CONFIRM
http://www.securityfocus.com/bid/104450
BID 104450 GnuPG CVE-2018-12020 Security Bypass Vulnerability Release Date:2018-06-08
https://usn.ubuntu.com/3675-1/
UBUNTU USN-3675-1
http://www.securitytracker.com/id/1041051
SECTRACK 1041051
http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html
https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
https://www.debian.org/security/2018/dsa-4224
DEBIAN DSA-4224
https://usn.ubuntu.com/3675-3/
UBUNTU USN-3675-3
https://access.redhat.com/errata/RHSA-2018:2181
REDHAT RHSA-2018:2181
https://github.com/RUB-NDS/Johnny-You-Are-Fired
https://dev.gnupg.org/T4012
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000425.html
https://access.redhat.com/errata/RHSA-2018:2180
REDHAT RHSA-2018:2180
http://openwall.com/lists/oss-security/2018/06/08/2
http://seclists.org/fulldisclosure/2019/Apr/38
FULLDISC 20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients
http://www.openwall.com/lists/oss-security/2019/04/30/4
MLIST [oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)

- Metasploit Modules Related To CVE-2018-12020

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


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