A vulnerability was found in GNU Nano that allows a possible privilege escalation through an insecure temporary file. If Nano is killed while editing, a file it saves to an emergency file with the permissions of the running user provides a window of opportunity for attackers to escalate privileges through a malicious symlink.
{
"priority_reason": "Uncommon attack scenario",
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "nano",
"binary_version": "2.2.6-1ubuntu1+esm1"
},
{
"binary_name": "nano-tiny",
"binary_version": "2.2.6-1ubuntu1+esm1"
}
]
}{
"priority_reason": "Uncommon attack scenario",
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "nano",
"binary_version": "2.5.3-2ubuntu2+esm1"
},
{
"binary_name": "nano-tiny",
"binary_version": "2.5.3-2ubuntu2+esm1"
}
]
}{
"priority_reason": "Uncommon attack scenario",
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "nano",
"binary_version": "2.9.3-2ubuntu0.1~esm1"
},
{
"binary_name": "nano-tiny",
"binary_version": "2.9.3-2ubuntu0.1~esm1"
}
]
}