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CVE-2020-13645

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4405-1
Posted Jun 29, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4405-1 - It was discovered that glib-networking skipped hostname certificate verification if the application failed to specify the server identity. A remote attacker could use this to perform a person-in-the-middle attack and expose sensitive information.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2020-13645
MD5 | 6edb27c788594a3ac9c50a84a2ab6977
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