It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the xorg-hwe-18.04 package apport hooks, it could expose private data to other local users.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32555.json"
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "20.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "20.10"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "21.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "21.10"
}
]
}
]