UBUNTU-CVE-2024-1135

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Source
https://ubuntu.com/security/CVE-2024-1135
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-1135.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2024-1135
Upstream
Published
2024-04-16T00:15:00Z
Modified
2025-10-10T15:16:36Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Gunicorn fails to properly validate Transfer-Encoding headers, leading to HTTP Request Smuggling (HRS) vulnerabilities. By crafting requests with conflicting Transfer-Encoding headers, attackers can bypass security restrictions and access restricted endpoints. This issue is due to Gunicorn's handling of Transfer-Encoding headers, where it incorrectly processes requests with multiple, conflicting Transfer-Encoding headers, treating them as chunked regardless of the final encoding specified. This vulnerability allows for a range of attacks including cache poisoning, session manipulation, and data exposure.

References

Affected packages

Ubuntu:22.04:LTS

gunicorn

Package

Name
gunicorn
Purl
pkg:deb/ubuntu/gunicorn@20.1.0-2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

20.*

20.1.0-1
20.1.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "20.1.0-2",
            "binary_name": "gunicorn"
        },
        {
            "binary_version": "20.1.0-2",
            "binary_name": "gunicorn-examples"
        },
        {
            "binary_version": "20.1.0-2",
            "binary_name": "python3-gunicorn"
        }
    ]
}

Ubuntu:24.04:LTS

gunicorn

Package

Name
gunicorn
Purl
pkg:deb/ubuntu/gunicorn@20.1.0-6?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

20.*

20.1.0-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "20.1.0-6",
            "binary_name": "gunicorn"
        },
        {
            "binary_version": "20.1.0-6",
            "binary_name": "gunicorn-examples"
        },
        {
            "binary_version": "20.1.0-6",
            "binary_name": "python3-gunicorn"
        }
    ]
}

Ubuntu:25.04

gunicorn

Package

Name
gunicorn
Purl
pkg:deb/ubuntu/gunicorn@23.0.0-1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

23.*

23.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "23.0.0-1",
            "binary_name": "gunicorn"
        },
        {
            "binary_version": "23.0.0-1",
            "binary_name": "gunicorn-examples"
        },
        {
            "binary_version": "23.0.0-1",
            "binary_name": "python3-gunicorn"
        }
    ]
}

Ubuntu:25.10

gunicorn

Package

Name
gunicorn
Purl
pkg:deb/ubuntu/gunicorn@23.0.0-1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

23.*

23.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "23.0.0-1",
            "binary_name": "gunicorn"
        },
        {
            "binary_version": "23.0.0-1",
            "binary_name": "gunicorn-examples"
        },
        {
            "binary_version": "23.0.0-1",
            "binary_name": "python3-gunicorn"
        }
    ]
}

Ubuntu:Pro:14.04:LTS

gunicorn

Package

Name
gunicorn
Purl
pkg:deb/ubuntu/gunicorn@17.5-2ubuntu0.1~esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

17.*

17.5-2
17.5-2build1
17.5-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "17.5-2ubuntu0.1~esm1",
            "binary_name": "gunicorn"
        }
    ]
}

Ubuntu:Pro:16.04:LTS

gunicorn

Package

Name
gunicorn
Purl
pkg:deb/ubuntu/gunicorn@19.4.5-1ubuntu1.1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

19.*

19.0-8ubuntu1
19.4.1-1ubuntu1
19.4.5-1ubuntu1
19.4.5-1ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "19.4.5-1ubuntu1.1",
            "binary_name": "gunicorn"
        },
        {
            "binary_version": "19.4.5-1ubuntu1.1",
            "binary_name": "gunicorn-examples"
        },
        {
            "binary_version": "19.4.5-1ubuntu1.1",
            "binary_name": "gunicorn3"
        },
        {
            "binary_version": "19.4.5-1ubuntu1.1",
            "binary_name": "python-gunicorn"
        },
        {
            "binary_version": "19.4.5-1ubuntu1.1",
            "binary_name": "python3-gunicorn"
        }
    ]
}

Ubuntu:Pro:18.04:LTS

gunicorn

Package

Name
gunicorn
Purl
pkg:deb/ubuntu/gunicorn@19.7.1-4?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

19.*

19.7.1-3
19.7.1-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "19.7.1-4",
            "binary_name": "gunicorn"
        },
        {
            "binary_version": "19.7.1-4",
            "binary_name": "gunicorn-examples"
        },
        {
            "binary_version": "19.7.1-4",
            "binary_name": "gunicorn3"
        },
        {
            "binary_version": "19.7.1-4",
            "binary_name": "python-gunicorn"
        },
        {
            "binary_version": "19.7.1-4",
            "binary_name": "python3-gunicorn"
        }
    ]
}

Ubuntu:Pro:20.04:LTS

gunicorn

Package

Name
gunicorn
Purl
pkg:deb/ubuntu/gunicorn@20.0.4-3?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

19.*

19.9.0-1
19.9.0-4

20.*

20.0.0-1
20.0.2-1
20.0.4-1
20.0.4-2
20.0.4-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "20.0.4-3",
            "binary_name": "gunicorn"
        },
        {
            "binary_version": "20.0.4-3",
            "binary_name": "gunicorn-examples"
        },
        {
            "binary_version": "20.0.4-3",
            "binary_name": "python3-gunicorn"
        }
    ]
}