A locally-installed hostile program could send WM_COPYDATA messages that Firefox would process incorrectly, leading to an out-of-bounds read. This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11.
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "89.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "78.11"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "78.11"
}
]
}
]
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-29964.json"