It was discovered that Zstandard incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code.
{
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_version": "1.3.1+dfsg-1~ubuntu0.16.04.1+esm2",
"binary_name": "libzstd1"
},
{
"binary_version": "1.3.1+dfsg-1~ubuntu0.16.04.1+esm2",
"binary_name": "libzstd1-dev"
},
{
"binary_version": "1.3.1+dfsg-1~ubuntu0.16.04.1+esm2",
"binary_name": "zstd"
}
]
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5593-1.json"
{
"cves": [
{
"id": "CVE-2019-11922",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}