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Mozilla is certainly having a nightmarish security week. Late June 4, it released a security-fix Version 1.5.0.12 of its Thunderbird e-mail client, after updating its Firefox browser, a Firefox Google toolbar extension and its SeaMonkey Web application suite—all within the last six days.
The new Thunderbird 1.5.0.12 replaces 1.5.0.10. The 1.5.0.11 version number was skipped to keep in sync with Firefox, a Mozilla spokesperson said.
The security fixes are detailed in the Thunderbird 1.5.0.12 section of the Mozilla Foundation Security Advisories page. The most important fixes include a flaw in APOP authentication (which also affects the Mail & Newsgroups component of SeaMonkey) and a memory corruption bug (which also affects Firefox and SeaMonkey), the spokesperson said.
“The release of Thunderbird 1.5.0.12 brings Thunderbird 1.5s security into line with that of Firefox 1.5.0.12, Firefox 2.0.0.4, and SeaMonkey 1.1.2 and 1.0.9, all of which were released last week,” the spokesperson said.
Thunderbird 1.5 was replaced by Thunderbird 2 in April but Version 1.5 will continue to be supported with security and stability updates until Oct. 18, the spokesperson said.
Support for the equivalent Firefox 1.5, which was replaced by Firefox 2 last October, is currently being phased out.
Thunderbird 1.5.0.12 can be downloaded (10.2MB for Linux users) from the older Thunderbird releases Web page or via Thunderbirds built-in software update system. More details are available in the Thunderbird 1.5.0.12 release notes.
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