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.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "firefox",
"binary_version": "49.0+build4-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-dev",
"binary_version": "49.0+build4-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-globalmenu",
"binary_version": "49.0+build4-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "49.0+build4-0ubuntu0.14.04.1"
},
{
"binary_name": "firefox-testsuite",
"binary_version": "49.0+build4-0ubuntu0.14.04.1"
}
]
}
{
"availability": "No subscription required",
"binaries": [
{
"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",
"binary_version": "49.0+build4-0ubuntu0.16.04.1"
}
]
}