A particular case of memory sharing is mishandled in the virtual memory system. This is very similar to SA-21:08.vm, but with a different root cause.
An unprivileged local user process can maintain a mapping of a page after it is freed, allowing that process to read private data belonging to other processes or the kernel.
[
{
"defaultStatus": "unknown",
"modules": [
"vm"
],
"product": "FreeBSD",
"vendor": "FreeBSD",
"versions": [
{
"lessThan": "p1",
"status": "affected",
"version": "13.1-RELEASE",
"versionType": "release"
},
{
"lessThan": "p12",
"status": "affected",
"version": "13.0-RELEASE",
"versionType": "release"
},
{
"lessThan": "p6",
"status": "affected",
"version": "12.3-RELEASE",
"versionType": "release"
}
]
}
]