Medium severity5.9NVD Advisory· Published Aug 26, 2020· Updated Jun 17, 2026
CVE-2020-24661
CVE-2020-24661
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6- GNOME/Gearydescription
<3.36.3+ 1 more
- (no CPE)range: <3.36.3
- cpe:2.3:a:gnome:geary:*:*:*:*:*:*:*:*range: <3.36.3
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
4- gitlab.gnome.org/GNOME/geary/-/issues/866nvdExploitIssue TrackingThird Party Advisory
- tools.cisco.com/security/center/content/CiscoSeg/message/NS6CSTOBVO5HSAR3X5CT6DS6QDHXDB26/nvdBroken Link
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G7OTYTGND6EFOKNQJWCHKKXKSN7SM73Y/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NS6CSTOBVO5HSAR3X5CT6DS6QDHXDB26/nvd
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