Mozilla developer Nika Layzell and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103 and Firefox ESR 102.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 102.2, Thunderbird < 102.2, and Firefox < 104.
{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "firefox",
            "binary_version": "104.0+build3-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "firefox-dev",
            "binary_version": "104.0+build3-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "firefox-geckodriver",
            "binary_version": "104.0+build3-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "firefox-mozsymbols",
            "binary_version": "104.0+build3-0ubuntu0.18.04.1"
        }
    ]
}{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:102.2.2+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:102.2.2+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:102.2.2+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:102.2.2+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:102.2.2+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:102.2.2+build1-0ubuntu0.18.04.1"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:102.2.2+build1-0ubuntu0.18.04.1"
        }
    ]
}{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "firefox",
            "binary_version": "104.0+build3-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "firefox-dev",
            "binary_version": "104.0+build3-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "firefox-geckodriver",
            "binary_version": "104.0+build3-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "firefox-mozsymbols",
            "binary_version": "104.0+build3-0ubuntu0.20.04.1"
        }
    ]
}{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:102.2.2+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:102.2.2+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:102.2.2+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:102.2.2+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:102.2.2+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:102.2.2+build1-0ubuntu0.20.04.1"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:102.2.2+build1-0ubuntu0.20.04.1"
        }
    ]
}{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "thunderbird",
            "binary_version": "1:102.2.2+build1-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "thunderbird-dev",
            "binary_version": "1:102.2.2+build1-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "thunderbird-gnome-support",
            "binary_version": "1:102.2.2+build1-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "thunderbird-mozsymbols",
            "binary_version": "1:102.2.2+build1-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "xul-ext-calendar-timezones",
            "binary_version": "1:102.2.2+build1-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "xul-ext-gdata-provider",
            "binary_version": "1:102.2.2+build1-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "xul-ext-lightning",
            "binary_version": "1:102.2.2+build1-0ubuntu0.22.04.1"
        }
    ]
}