In snapd 2.27 through 2.29.2 the 'snap logs' command could be made to call journalctl without match arguments and therefore allow unprivileged, unauthenticated users to bypass systemd-journald's access restrictions.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.29.4.2~14.04"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.29.4.2~14.04"
},
{
"binary_name": "snap-confine",
"binary_version": "2.29.4.2~14.04"
},
{
"binary_name": "snapd",
"binary_version": "2.29.4.2~14.04"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.29.4.2~14.04"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.29.4.2~14.04"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.29.4.2~14.04"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.29.4.2~14.04"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.29.4.2~14.04"
}
]
}
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.29.4.2"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.29.4.2"
},
{
"binary_name": "snap-confine",
"binary_version": "2.29.4.2"
},
{
"binary_name": "snapd",
"binary_version": "2.29.4.2"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.29.4.2"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.29.4.2"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.29.4.2"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.29.4.2"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.29.4.2"
}
]
}