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Vulnerability Details : CVE-2020-13645

In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnection skips hostname verification of the server's TLS certificate if the application fails to specify the expected server identity. This is in contrast to its intended documented behavior, to fail the certificate verification. Applications that fail to provide the server identity, including Balsa before 2.5.11 and 2.6.x before 2.6.1, accept a TLS certificate if the certificate is valid for any host.
Publish Date : 2020-05-28 Last Update Date : 2021-06-22
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
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 295

- Products Affected By CVE-2020-13645

# Product Type Vendor Product Version Update Edition Language
1 OS Broadcom Fabric Operating System - * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 19.10 * * * Version Details Vulnerabilities
5 OS Canonical Ubuntu Linux 20.04 * * * Version Details Vulnerabilities
6 OS Fedoraproject Fedora 31 * * * Version Details Vulnerabilities
7 OS Fedoraproject Fedora 32 * * * Version Details Vulnerabilities
8 Application Gnome Balsa * * * * Version Details Vulnerabilities
9 Application Gnome Balsa 2.6.0 * * * Version Details Vulnerabilities
10 Application Gnome Glib-networking * * * * Version Details Vulnerabilities
11 Application Netapp Cloud Backup - * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Broadcom Fabric Operating System 1
Canonical Ubuntu Linux 4
Fedoraproject Fedora 2
Gnome Balsa 2
Gnome Glib-networking 1
Netapp Cloud Backup 1

- References For CVE-2020-13645[email protected]/message/LRCUM22YEWWKNMN2BP5LTVDM5P4VWIXS/
FEDORA FEDORA-2020-a83c8cd358
UBUNTU USN-4405-1[email protected]/message/HLEX2IP62SU6WJ4SK3U766XGLQK3J62O/
FEDORA FEDORA-2020-cadbc5992f[email protected]/message/TQEQJQ4XFMFCFJTEXKL2ZO3UELBPCKSK/
FEDORA FEDORA-2020-98ebbd1397

- Metasploit Modules Related To CVE-2020-13645

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

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