Mozilla is a popular web browser that includes a mail and newsreader. Epiphany is a web browser that uses Gecko, the Mozilla rendering engine. Mozilla Firefox and Mozilla Thunderbird are respectively the next-generation browser and mail client from the Mozilla project.
Mozilla-based products are vulnerable to multiple security issues. Firstly routines handling the display of BMP images and VCards contain an integer overflow and a stack buffer overrun. Specific pages with long links, when sent using the "Send Page" function, and links with non-ASCII hostnames could both cause heap buffer overruns.
There is no known workaround covering all vulnerabilities.
All users should upgrade to the latest stable version:
# emerge sync # emerge -pv your-version # emerge your-version