USN-4896-2

It was discovered that lxml incorrectly handled certain HTML attributes. A remote attacker could possibly use this issue to perform cross-site scripting (XSS) attacks.

References

Affected packages

Ubuntu:Pro:14.04:LTS / lxml

Package

Name: lxml
Purl: pkg:deb/ubuntu/lxml@3.3.3-1ubuntu0.2+esm3?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.3.3-1ubuntu0.2+esm3

Affected versions

3.*

3.2.0-1

3.3.0~beta2-1

3.3.0~beta4-1

3.3.1-1

3.3.2-1

3.3.2-1build1

3.3.3-1

3.3.3-1ubuntu0.1

3.3.3-1ubuntu0.2

3.3.3-1ubuntu0.2+esm1

3.3.3-1ubuntu0.2+esm2

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python-lxml",
            "binary_version": "3.3.3-1ubuntu0.2+esm3"
        },
        {
            "binary_name": "python3-lxml",
            "binary_version": "3.3.3-1ubuntu0.2+esm3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4896-2.json"

cves_map

{
    "cves": [
        {
            "id": "CVE-2021-28957",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}