Heap-based buffer overflow in nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox and Thunderbird

CVE-2016-5270 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

Heap-based buffer overflow in the nsCaseTransformTextRunFactory::TransformString function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to cause a denial of service (boolean out-of-bounds write) or possibly have unspecified other impact via Unicode characters that are mishandled during text conversion.

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