NSC_DeriveKey inadvertently assumed that the phKey parameter is always non-NULL. When it was passed as NULL, a segmentation fault (SEGV) occurred, leading to crashes. This behavior conflicted with the PKCS#11 v3.0 specification, which allows phKey to be NULL for certain mechanisms. This vulnerability affects Firefox < 133 and Thunderbird < 133.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "firefox",
"binary_version": "133.0+build2-0ubuntu0.20.04.1"
},
{
"binary_name": "firefox-dev",
"binary_version": "133.0+build2-0ubuntu0.20.04.1"
},
{
"binary_name": "firefox-geckodriver",
"binary_version": "133.0+build2-0ubuntu0.20.04.1"
},
{
"binary_name": "firefox-mozsymbols",
"binary_version": "133.0+build2-0ubuntu0.20.04.1"
}
]
}