The camel component for Ximian Evolution 1.0.x and earlier does not verify certificates when it establishes a new SSL connection after previously verifying a certificate, which could allow remote attackers to monitor or modify sessions via a man-in-the-middle attack.

Evolution 1.0.3 and 1.0.4 allows remote attackers to cause a denial of service (memory consumption and crash) via an email with a malformed MIME header.

The try_uudecoding function in mail-format.c for Ximian Evolution Mail User Agent 1.2.2 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a malicious uuencoded (UUE) header, possibly triggering a heap-based buffer overflow.

Ximian Evolution Mail User Agent 1.2.2 and earlier allows remote attackers to cause a denial of service (memory consumption) via a mail message that is uuencoded multiple times.

The handle_image function in mail-format.c for Ximian Evolution Mail User Agent 1.2.2 and earlier does not properly escape HTML characters, which allows remote attackers to inject arbitrary data and HTML via a MIME Content-ID header in a MIME-encoded image.

The IMAP Client for Evolution 1.2.4 allows remote malicious IMAP servers to cause a denial of service and possibly execute arbitrary code via certain large literal size values that cause either integer signedness errors or integer overflow errors.

The IMAP Client for Sylpheed 0.8.11 allows remote malicious IMAP servers to cause a denial of service (crash) via certain large literal size values that cause either integer signedness errors or integer overflow errors.

Evolution 2.0.3 allows remote attackers to cause a denial of service (application crash or hang) via crafted messages, possibly involving charsets in attachment filenames.