CVE-2020-24661: GNOME Geary before 3.36.3 mishandles pinned TLS certificate verification for IMAP and SMTP services using invalid TLS certificates (e.g., self-signed…

PriorityP428medium5.9CVSS 3.1

AVNACHPRNUINSUCHINAN

EPSS

0.92%

56.9th percentile

GNOME Geary before 3.36.3 mishandles pinned TLS certificate verification for IMAP and SMTP services using invalid TLS certificates (e.g., self-signed certificates) when the client system is not configured to use a system-provided PKCS#11 store. This allows a meddler in the middle to present a different invalid certificate to intercept incoming and outgoing mail.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
debian	geary	< geary 3.38.0.1-1 (bookworm)	geary 3.38.0.1-1 (bookworm)
fedoraproject	fedora	—	—
fedoraproject	fedora	—	—
gnome	geary	< 3.36.3	3.36.3
gnome	geary	>= 0 < 3.38.0.1-1	3.38.0.1-1
gnome	geary	>= 0 < 3.38.0.1-1	3.38.0.1-1
gnome	geary	>= 0 < 3.38.0.1-1	3.38.0.1-1
gnome	geary	>= 0 < 3.38.0.1-1	3.38.0.1-1

CVSS provenance

nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

nvdv2.02.6LOWAV:N/AC:H/Au:N/C:P/I:N/A:N

osv5.9MEDIUM

vendor_debian5.9MEDIUM

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