Vulnerability in Broadcom Fabric Operating System
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.
Vulnerability class: Improper Certificate Validation
EPSS: 0.019 (77.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Broadcom Fabric_operating_system
- Gnome Balsa — versions 2.6.0
- Gnome Glib-networking
- Netapp Cloud_backup
- Canonical Ubuntu_linux — versions 16.04, 18.04, 19.10
- Fedoraproject Fedora — versions 31, 32
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2020-13645?
- CVE-2020-13645 is a medium-severity vulnerability in Broadcom Fabric Operating System, classified under Improper Certificate Validation. CVSS score: 6.5/10. Published 2020-05-28.
- How severe is CVE-2020-13645?
- Medium severity. CVSS v3 base score is 6.5 out of 10.