lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn't otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.
{
"versions": [
{
"introduced": "2.0.0"
},
{
"last_affected": "2.0.9"
},
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.2"
},
{
"introduced": "0"
},
{
"last_affected": "1.0"
},
{
"introduced": "0"
},
{
"last_affected": "2.0"
}
]
}"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6556.json"
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "6"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "11-sp3"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "11-sp4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "15.0"
}
]
}
]