USN-5701-1

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Source
https://ubuntu.com/security/notices/USN-5701-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5701-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5701-1
Upstream
Related
Published
2022-10-26T13:36:52.869188Z
Modified
2025-10-13T04:36:08Z
Summary
jinja2 vulnerability
Details

Yeting Li discovered that Jinja2 incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service.

References

Affected packages

Ubuntu:Pro:16.04:LTS / jinja2

Package

Name
jinja2
Purl
pkg:deb/ubuntu/jinja2@2.8-1ubuntu0.1+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.8-1ubuntu0.1+esm1

Affected versions

2.*

2.8-1
2.8-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.8-1ubuntu0.1+esm1",
            "binary_name": "python-jinja2"
        },
        {
            "binary_version": "2.8-1ubuntu0.1+esm1",
            "binary_name": "python3-jinja2"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-28493",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ]
}