USN-6483-1

Neeraj Pal discovered that HTML Tidy incorrectly handled parsing certain HTML data. If a user or automated system were tricked into parsing specially crafted HTML data, a remote attacker could cause HTML Tidy to consume resources, leading to a denial of service, or possibly execute arbitrary code.

References

Affected packages

Ubuntu:20.04:LTS / tidy-html5

Package

Name: tidy-html5
Purl: pkg:deb/ubuntu/tidy-html5@2:5.6.0-11ubuntu0.20.04.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2:5.6.0-11ubuntu0.20.04.1

Affected versions

2:5.*

2:5.6.0-10

2:5.6.0-11

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "2:5.6.0-11ubuntu0.20.04.1",
            "binary_name": "libtidy5deb1"
        },
        {
            "binary_version": "2:5.6.0-11ubuntu0.20.04.1",
            "binary_name": "tidy"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2021-33391"
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6483-1.json"

Ubuntu:22.04:LTS / tidy-html5