SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionMikhail Markin reported that enigmail incorrectly handled memory allocations for certain large encrypted attachments. This caused Thunderbird to crash and thus caused the entire message to be inaccessible.
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected mozilla-thunderbird-enigmail package.