eWeek – Mozilla Patches Critical Firefox, Thunderbird Flaws

Die zunehmende Komplexität des Firefox Browsers reißt immer mehr Sicherheitslücken auf:

Mozilla on Sept. 15 shipped a "highly critical" Firefox update to correct a range of security flaws that could lead to security bypass, cross-site scripting, spoofing, denial-of-service and system access attacks. The open-source group patched a total of seven vulnerabilities in its flagship browser and warned that the majority of the flaws could be exploited to run attacker code without any user interaction beyond normal Web browsing.

Since releasing Firefox 1.5 in November 2005, Mozilla has patched 59 security vulnerabilities in the browser, more than half rated by the company as "critical."

The most serious bug fixed in the Firefox 1.0.7 update is an error in the handling of JavaScript. This can be exploited to cause a heap-based buffer overflow to execute arbitrary code without user action. The browser refresh also fixes a crash that presents evidence of memory corruption, an auto-update compromise through DNS and SSL spoofing, and a signature forgery issue that allows malicious hackers to forge SSL certificates. In addition, it fixes several time-dependent errors during text display that can be exploited to corrupt memory.

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