Security Audit Finds Nothing: News At 11

Secure Open Source is a project, stewarded by Mozilla, which provides manual source code audits for key pieces of open source software. Recently, we had a trusted firm of auditors, Cure53, examine the dovecot IMAP server software, which runs something like two thirds of all IMAP servers worldwide. (IMAP is the preferred modern protocol for accessing an email store.)

The big news is that they found… nothing. Well, nearly nothing. They managed to scrape up 3 “vulnerabilities” of Low severity.

Cure53 write:

Despite much effort and thoroughly all-encompassing approach, the Cure53 testers only managed to assert the excellent security-standing of Dovecot. More specifically, only three minor security issues have been found in the codebase, thus translating to an exceptionally good outcome for Dovecot, and a true testament to the fact that keeping security promises is at the core of the Dovecot development and operations.

Now, if we didn’t trust our auditors and they came back empty handed, we might suspect them of napping on the job. But we do, and so this sort of result, while seemingly a “failure” or a “waste of money”, is the sort of thing we’d like to see more of! We will know Secure Open Source, and other programs to improve the security of FLOSS code, are having an impact when more and more security audits come back with this sort of result. So well done to the dovecot maintainers; may they be the first of many.

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