In a non-standard configuration of Firefox, an integer overflow could have occurred based on network traffic (possibly under influence of a local unprivileged webpage), leading to an out-of-bounds write to privileged process memory. This bug only affects Firefox if a non-standard preference allowing non-HTTPS Alternate Services (network.http.altsvc.oe) is enabled. This vulnerability affects Firefox < 118.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "firefox",
"binary_version": "118.0.1+build1-0ubuntu0.20.04.1"
},
{
"binary_name": "firefox-dev",
"binary_version": "118.0.1+build1-0ubuntu0.20.04.1"
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{
"binary_name": "firefox-geckodriver",
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{
"binary_name": "firefox-mozsymbols",
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}
]
}