CVE-2017-18911: An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. The X.509 certificate validation can be skipped for a TLS-based e-mail server.

PriorityP344critical9.1CVSS 3.1

AVNACLPRNUINSUCHIHAN

EPSS

0.67%

48.2th percentile

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. The X.509 certificate validation can be skipped for a TLS-based e-mail server.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
github.com	mattermost_mattermost-server	>= 0 < 3.6.7-rc1	3.6.7-rc1
github.com	mattermost_mattermost-server	>= 0 < 3.6.7-rc1+incompatible	3.6.7-rc1+incompatible
github.com	mattermost_mattermost-server	>= 3.7.0 < 3.7.5	3.7.5
github.com	mattermost_mattermost-server	>= 3.7.0+incompatible < 3.7.5+incompatible	3.7.5+incompatible
github.com	mattermost_mattermost-server	>= 3.8.0 < 3.8.2	3.8.2
github.com	mattermost_mattermost-server	>= 3.8.0+incompatible < 3.8.2+incompatible	3.8.2+incompatible
mattermost	mattermost_server	< 3.6.7	3.6.7
mattermost	mattermost_server	>= 3.7.0 < 3.7.5	3.7.5
mattermost	mattermost_server	>= 3.8.0 < 3.8.2	3.8.2

CVSS provenance

nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

nvdv2.06.4MEDIUMAV:N/AC:L/Au:N/C:P/I:P/A:N

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