UBUNTU-CVE-2021-36396

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Source

https://ubuntu.com/security/CVE-2021-36396

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36396.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-36396

Upstream

CVE-2021-36396

Published

2023-03-06T21:15:00Z

Modified

2025-10-24T04:50:26Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

In Moodle, insufficient redirect handling made it possible to blindly bypass cURL blocked hosts/allowed ports restrictions, resulting in a blind SSRF risk.

References

Affected packages

Ubuntu:16.04:LTS / moodle

Package

Name: moodle
Purl: pkg:deb/ubuntu/moodle@3.0.3+dfsg-0ubuntu1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.7.9+dfsg-1

2.7.10+dfsg-1

2.7.11+dfsg-1

2.7.11+dfsg-2

2.7.12+dfsg-1

3.*

3.0.3+dfsg-0ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "moodle",
            "binary_version": "3.0.3+dfsg-0ubuntu1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36396.json"

Ubuntu:18.04:LTS / moodle