Fabian Vogt discovered that Ark incorrectly handled symbolic links in tar archive files. An attacker could use this to construct a malicious tar archive that, when opened, would create files outside the extraction directory.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ark",
"binary_version": "4:15.12.3-0ubuntu1.2"
}
]
}
{
"ecosystem": "Ubuntu:16.04:LTS",
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2020-24654"
}
]
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4482-1.json"
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ark",
"binary_version": "4:17.12.3-0ubuntu1.2"
}
]
}
{
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2020-24654"
}
]
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4482-1.json"
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ark",
"binary_version": "4:19.12.3-0ubuntu1.2"
}
]
}
{
"ecosystem": "Ubuntu:20.04:LTS",
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2020-24654"
}
]
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4482-1.json"