Vulnerability Monitor

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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.

Published

2020-05-28T12:15:11.173

Last Modified

2024-11-21T05:01:40.310

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-295
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnome balsa < 2.5.11 Yes
Application gnome balsa 2.6.0 Yes
Application gnome glib-networking < 2.62.4 Yes
Application gnome glib-networking < 2.64.3 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System canonical ubuntu_linux 19.10 Yes
Operating System canonical ubuntu_linux 20.04 Yes
Operating System fedoraproject fedora 31 Yes
Operating System fedoraproject fedora 32 Yes
Application netapp cloud_backup - Yes
Operating System broadcom fabric_operating_system - Yes
References