It was discovered that HTMLDOC did not properly manage memory under certain circumstances. If a user were tricked into opening a specially crafted HTML file, a remote attacker could possibly use this issue to cause HTMLDOC to crash, resulting in a denial of service, or possibly execute arbitrary code.
{
"binaries": [
{
"binary_version": "1.9.2-1ubuntu0.2",
"binary_name": "htmldoc"
},
{
"binary_version": "1.9.2-1ubuntu0.2",
"binary_name": "htmldoc-common"
}
],
"availability": "No subscription required"
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5438-1.json"
{
"cves": [
{
"id": "CVE-2021-23165",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
{
"binaries": [
{
"binary_version": "1.9.7-1ubuntu0.3",
"binary_name": "htmldoc"
},
{
"binary_version": "1.9.7-1ubuntu0.3",
"binary_name": "htmldoc-common"
}
],
"availability": "No subscription required"
}
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5438-1.json"
{
"cves": [
{
"id": "CVE-2021-23165",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}