CVE Vulnerability

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.

6.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://gitlab.gnome.org/GNOME/balsa/-/issues/34 Exploit Vendor Advisory
https://gitlab.gnome.org/GNOME/glib-networking/-/issues/135 Exploit Vendor Advisory
https://security.netapp.com/advisory/ntap-20200608-0004/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TQEQJQ4XFMFCFJTEXKL2ZO3UELBPCKSK/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HLEX2IP62SU6WJ4SK3U766XGLQK3J62O/ Mailing List Third Party Advisory
https://usn.ubuntu.com/4405-1/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LRCUM22YEWWKNMN2BP5LTVDM5P4VWIXS/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202007-50 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:gnome:balsa:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:gnome:balsa:*:*:*:*:*:*:*:*
cpe:2.3:a:gnome:glib-networking:*:*:*:*:*:*:*:*
cpe:2.3:a:gnome:glib-networking:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
cpe:2.3:o:broadcom:fabric_operating_system:-:*:*:*:*:*:*:*
Information

Published : 2020-05-28 12:15

Updated : 2021-06-22 02:47

NVD link : CVE-2020-13645

Mitre link : CVE-2020-13645

Products Affected
No products.
CWE
CWE-295

Improper Certificate Validation