The PropertyProvider::GetSpacingInternal function in Mozilla Firefox before 49.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via text runs in conjunction with a "display: contents" Cascading Style Sheets (CSS) property.
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{ "binaries": [ { "binary_version": "49.0+build4-0ubuntu0.16.04.1", "binary_name": "firefox" }, { "binary_version": "49.0+build4-0ubuntu0.16.04.1", "binary_name": "firefox-dev" }, { "binary_version": "49.0+build4-0ubuntu0.16.04.1", "binary_name": "firefox-globalmenu" }, { "binary_version": "49.0+build4-0ubuntu0.16.04.1", "binary_name": "firefox-mozsymbols" }, { "binary_version": "49.0+build4-0ubuntu0.16.04.1", "binary_name": "firefox-testsuite" } ], "availability": "No subscription required" }