MEDIUM 6.5 Microsoft
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.
Microsoft Security Update 2020-May: 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.
Affected Products
- cm1 glib-networking 2.59.1-6 on CBL Mariner 1.0
- cbl2 glib-networking 2.59.1-8 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-13645
- https://nvd.nist.gov/vuln/detail/CVE-2020-13645
This medium severity vulnerability with a CVSS score of 6.5 was published on 2020-05-12 via Microsoft. Affected: cm1 glib-networking 2.59.1-6 on CBL Mariner 1.0, cbl2 glib-networking 2.59.1-8 on CBL Mariner 2.0.
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