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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2020-24661)

Note that Nessus relies on the presence of the package as reported by the vendor.

Add patch for CVE-2020-24661: Handling of pinned, invalid TLS certificates.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

geary 3.36.3.1 release :

  - Fixed handling of pinned, invalid TLS certificates:
    CVE-2020-24661

  - Build bug fixes

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
250771	Linux Distros Unpatched Vulnerability : CVE-2020-24661	Nessus	Misc.	medium
140438	Fedora 31 : geary (2020-95f2c5cc25)	Nessus	Fedora Local Security Checks	medium
140233	Fedora 32 : geary (2020-d445fb484a)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2020-24661

medium

Tenable Plugins

medium

medium

medium