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Vulnerability Details : CVE-2018-0495

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Publish Date : 2018-06-13 Last Update Date : 2019-05-30
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- CVSS Scores & Vulnerability Types

CVSS Score
1.9
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 Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:3221: openssl security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20183221 unix
RHSA-2019:2237: nss, nss-softokn, nss-util, and nspr security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20192237 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-2018-0495

# 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 Debian Debian Linux 8.0 Version Details Vulnerabilities
8 OS Debian Debian Linux 9.0 Version Details Vulnerabilities
9 Application Gnupg Libgcrypt 0.1.0 Version Details Vulnerabilities
10 Application Gnupg Libgcrypt 0.2.0 Version Details Vulnerabilities
11 Application Gnupg Libgcrypt 0.2.6 Version Details Vulnerabilities
12 Application Gnupg Libgcrypt 0.2.8 Version Details Vulnerabilities
13 Application Gnupg Libgcrypt 0.2.10 Version Details Vulnerabilities
14 Application Gnupg Libgcrypt 0.2.15 Version Details Vulnerabilities
15 Application Gnupg Libgcrypt 0.2.17 Version Details Vulnerabilities
16 Application Gnupg Libgcrypt 0.2.18 Version Details Vulnerabilities
17 Application Gnupg Libgcrypt 0.2.19 Version Details Vulnerabilities
18 Application Gnupg Libgcrypt 0.3.0 Version Details Vulnerabilities
19 Application Gnupg Libgcrypt 0.3.1 Version Details Vulnerabilities
20 Application Gnupg Libgcrypt 0.3.2 Version Details Vulnerabilities
21 Application Gnupg Libgcrypt 0.3.3 Version Details Vulnerabilities
22 Application Gnupg Libgcrypt 0.3.4 Version Details Vulnerabilities
23 Application Gnupg Libgcrypt 0.3.5 Version Details Vulnerabilities
24 Application Gnupg Libgcrypt 0.4.0 Version Details Vulnerabilities
25 Application Gnupg Libgcrypt 0.4.1 Version Details Vulnerabilities
26 Application Gnupg Libgcrypt 0.4.2 Version Details Vulnerabilities
27 Application Gnupg Libgcrypt 0.4.3 Version Details Vulnerabilities
28 Application Gnupg Libgcrypt 0.4.4 Version Details Vulnerabilities
29 Application Gnupg Libgcrypt 0.4.5 Version Details Vulnerabilities
30 Application Gnupg Libgcrypt 0.9.0 Version Details Vulnerabilities
31 Application Gnupg Libgcrypt 0.9.1 Version Details Vulnerabilities
32 Application Gnupg Libgcrypt 0.9.2 Version Details Vulnerabilities
33 Application Gnupg Libgcrypt 0.9.3 Version Details Vulnerabilities
34 Application Gnupg Libgcrypt 0.9.4 Version Details Vulnerabilities
35 Application Gnupg Libgcrypt 0.9.5 Version Details Vulnerabilities
36 Application Gnupg Libgcrypt 0.9.6 Version Details Vulnerabilities
37 Application Gnupg Libgcrypt 0.9.7 Version Details Vulnerabilities
38 Application Gnupg Libgcrypt 0.9.8 Version Details Vulnerabilities
39 Application Gnupg Libgcrypt 0.9.9 Version Details Vulnerabilities
40 Application Gnupg Libgcrypt 0.9.10 Version Details Vulnerabilities
41 Application Gnupg Libgcrypt 0.9.11 Version Details Vulnerabilities
42 Application Gnupg Libgcrypt 1.0.0 Version Details Vulnerabilities
43 Application Gnupg Libgcrypt 1.0.1 Version Details Vulnerabilities
44 Application Gnupg Libgcrypt 1.0.2 Version Details Vulnerabilities
45 Application Gnupg Libgcrypt 1.0.3 Version Details Vulnerabilities
46 Application Gnupg Libgcrypt 1.0.4 Version Details Vulnerabilities
47 Application Gnupg Libgcrypt 1.1.0 Version Details Vulnerabilities
48 Application Gnupg Libgcrypt 1.1.2 Version Details Vulnerabilities
49 Application Gnupg Libgcrypt 1.1.3 Version Details Vulnerabilities
50 Application Gnupg Libgcrypt 1.1.4 Version Details Vulnerabilities
51 Application Gnupg Libgcrypt 1.1.5 Version Details Vulnerabilities
52 Application Gnupg Libgcrypt 1.1.6 Version Details Vulnerabilities
53 Application Gnupg Libgcrypt 1.1.7 Version Details Vulnerabilities
54 Application Gnupg Libgcrypt 1.1.8 Version Details Vulnerabilities
55 Application Gnupg Libgcrypt 1.1.9 Version Details Vulnerabilities
56 Application Gnupg Libgcrypt 1.1.10 Version Details Vulnerabilities
57 Application Gnupg Libgcrypt 1.1.11 Version Details Vulnerabilities
58 Application Gnupg Libgcrypt 1.1.12 Version Details Vulnerabilities
59 Application Gnupg Libgcrypt 1.1.42 Version Details Vulnerabilities
60 Application Gnupg Libgcrypt 1.1.43 Version Details Vulnerabilities
61 Application Gnupg Libgcrypt 1.1.44 Version Details Vulnerabilities
62 Application Gnupg Libgcrypt 1.1.90 Version Details Vulnerabilities
63 Application Gnupg Libgcrypt 1.1.91 Version Details Vulnerabilities
64 Application Gnupg Libgcrypt 1.1.92 Version Details Vulnerabilities
65 Application Gnupg Libgcrypt 1.1.93 Version Details Vulnerabilities
66 Application Gnupg Libgcrypt 1.1.94 Version Details Vulnerabilities
67 Application Gnupg Libgcrypt 1.2.0 Version Details Vulnerabilities
68 Application Gnupg Libgcrypt 1.2.1 Version Details Vulnerabilities
69 Application Gnupg Libgcrypt 1.2.2 Version Details Vulnerabilities
70 Application Gnupg Libgcrypt 1.2.3 Version Details Vulnerabilities
71 Application Gnupg Libgcrypt 1.2.4 Version Details Vulnerabilities
72 Application Gnupg Libgcrypt 1.3.0 Version Details Vulnerabilities
73 Application Gnupg Libgcrypt 1.3.1 Version Details Vulnerabilities
74 Application Gnupg Libgcrypt 1.3.2 Version Details Vulnerabilities
75 Application Gnupg Libgcrypt 1.4.0 Version Details Vulnerabilities
76 Application Gnupg Libgcrypt 1.4.1 Version Details Vulnerabilities
77 Application Gnupg Libgcrypt 1.4.1 RC1 Version Details Vulnerabilities
78 Application Gnupg Libgcrypt 1.4.2 Version Details Vulnerabilities
79 Application Gnupg Libgcrypt 1.4.2 RC1 Version Details Vulnerabilities
80 Application Gnupg Libgcrypt 1.4.2 RC2 Version Details Vulnerabilities
81 Application Gnupg Libgcrypt 1.4.3 Version Details Vulnerabilities
82 Application Gnupg Libgcrypt 1.4.4 Version Details Vulnerabilities
83 Application Gnupg Libgcrypt 1.4.5 Version Details Vulnerabilities
84 Application Gnupg Libgcrypt 1.4.6 Version Details Vulnerabilities
85 Application Gnupg Libgcrypt 1.5.0 Version Details Vulnerabilities
86 Application Gnupg Libgcrypt 1.5.0 Beta1 Version Details Vulnerabilities
87 Application Gnupg Libgcrypt 1.5.1 Version Details Vulnerabilities
88 Application Gnupg Libgcrypt 1.5.2 Version Details Vulnerabilities
89 Application Gnupg Libgcrypt 1.5.3 Version Details Vulnerabilities
90 Application Gnupg Libgcrypt 1.5.4 Version Details Vulnerabilities
91 Application Gnupg Libgcrypt 1.5.5 Version Details Vulnerabilities
92 Application Gnupg Libgcrypt 1.5.6 Version Details Vulnerabilities
93 Application Gnupg Libgcrypt 1.6.0 Version Details Vulnerabilities
94 Application Gnupg Libgcrypt 1.6.1 Version Details Vulnerabilities
95 Application Gnupg Libgcrypt 1.6.2 Version Details Vulnerabilities
96 Application Gnupg Libgcrypt 1.6.3 Version Details Vulnerabilities
97 Application Gnupg Libgcrypt 1.6.4 Version Details Vulnerabilities
98 Application Gnupg Libgcrypt 1.6.5 Version Details Vulnerabilities
99 Application Gnupg Libgcrypt 1.6.6 Version Details Vulnerabilities
100 Application Gnupg Libgcrypt 1.7.0 Version Details Vulnerabilities
101 Application Gnupg Libgcrypt 1.7.1 Version Details Vulnerabilities
102 Application Gnupg Libgcrypt 1.7.2 Version Details Vulnerabilities
103 Application Gnupg Libgcrypt 1.7.3 Version Details Vulnerabilities
104 Application Gnupg Libgcrypt 1.7.4 Version Details Vulnerabilities
105 Application Gnupg Libgcrypt 1.7.5 Version Details Vulnerabilities
106 Application Gnupg Libgcrypt 1.7.6 Version Details Vulnerabilities
107 Application Gnupg Libgcrypt 1.7.7 Version Details Vulnerabilities
108 Application Gnupg Libgcrypt 1.7.8 Version Details Vulnerabilities
109 Application Gnupg Libgcrypt 1.7.9 Version Details Vulnerabilities
110 Application Gnupg Libgcrypt 1.8.0 Version Details Vulnerabilities
111 Application Gnupg Libgcrypt 1.8.1 Version Details Vulnerabilities
112 Application Gnupg Libgcrypt 1.8.2 Version Details Vulnerabilities
113 Application Oracle Traffic Director 11.1.1.9.0 Version Details Vulnerabilities
114 Application Redhat Ansible Tower 3.3 Version Details Vulnerabilities
115 OS Redhat Enterprise Linux Desktop 7.0 Version Details Vulnerabilities
116 OS Redhat Enterprise Linux Server 7.0 Version Details Vulnerabilities
117 OS Redhat Enterprise Linux Workstation 7.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 6
Debian Debian Linux 2
Gnupg Libgcrypt 104
Oracle Traffic Director 1
Redhat Ansible Tower 1
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Workstation 1

- References For CVE-2018-0495

https://usn.ubuntu.com/3689-2/
UBUNTU USN-3689-2
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://usn.ubuntu.com/3692-2/
UBUNTU USN-3692-2
https://usn.ubuntu.com/3850-1/
UBUNTU USN-3850-1
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
https://www.debian.org/security/2018/dsa-4231
DEBIAN DSA-4231
https://usn.ubuntu.com/3850-2/
UBUNTU USN-3850-2
https://usn.ubuntu.com/3692-1/
UBUNTU USN-3692-1
https://access.redhat.com/errata/RHSA-2018:3221
REDHAT RHSA-2018:3221
https://access.redhat.com/errata/RHSA-2019:1297
REDHAT RHSA-2019:1297
https://dev.gnupg.org/T4011
http://www.securitytracker.com/id/1041144
SECTRACK 1041144
https://usn.ubuntu.com/3689-1/
UBUNTU USN-3689-1
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965
http://www.securitytracker.com/id/1041147
SECTRACK 1041147
https://access.redhat.com/errata/RHSA-2018:3505
REDHAT RHSA-2018:3505
https://access.redhat.com/errata/RHSA-2019:1296
REDHAT RHSA-2019:1296
https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html
MLIST [debian-lts-announce] 20180629 [SECURITY] [DLA 1405-1] libgcrypt20 security update

- Metasploit Modules Related To CVE-2018-0495

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


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