Mozilla has addressed a total of 13 security vulnerabilities with the release of Firefox 27. The list includes four critical, four high, four moderate and one low-impact flaws.
The critical vulnerabilities, which can be exploited to execute arbitrary code without user interaction, are a use-after-free during image processing, an issue with image decoding in RasterImage, a crash when terminating a web worker running asm.js code, and miscellaneous memory safety hazards.
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