UBUNTU-CVE-2021-41267

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Source
https://ubuntu.com/security/CVE-2021-41267
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41267.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-41267
Related
Withdrawn
2025-06-23T15:54:06Z
Published
2021-11-24T19:15:00Z
Modified
2026-02-04T17:16:53Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

Symfony/Http-Kernel is the HTTP kernel component for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Headers that are not part of the "trusted_headers" allowed list are ignored and protect users from "Cache poisoning" attacks. In Symfony 5.2, maintainers added support for the X-Forwarded-Prefix headers, but this header was accessible in SubRequest, even if it was not part of the "trusted_headers" allowed list. An attacker could leverage this opportunity to forge requests containing a X-Forwarded-Prefix header, leading to a web cache poisoning issue. Versions 5.3.12 and later have a patch to ensure that the X-Forwarded-Prefix header is not forwarded to subrequests when it is not trusted.

References

Affected packages

Ubuntu:22.04:LTS / symfony

Package

Name
symfony
Purl
pkg:deb/ubuntu/symfony@5.4.4+dfsg-1ubuntu8?arch=source&distro=jammy

Affected ranges

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

Affected versions

5.*
5.2.6+dfsg-1ubuntu7
5.4.4+dfsg-1ubuntu8

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41267.json"

Ubuntu:24.10 / symfony

Package

Name
symfony
Purl
pkg:deb/ubuntu/symfony@6.4.10+dfsg-1ubuntu1?arch=source&distro=oracular

Affected ranges

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

Affected versions

6.*
6.4.5+dfsg-3ubuntu3
6.4.10+dfsg-1ubuntu1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41267.json"

Ubuntu:24.04:LTS / symfony

Package

Name
symfony
Purl
pkg:deb/ubuntu/symfony@6.4.5+dfsg-3ubuntu3?arch=source&distro=noble

Affected ranges

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

Affected versions

5.*
5.4.23+dfsg-1ubuntu1
5.4.35+dfsg-3ubuntu1
6.*
6.4.5+dfsg-3ubuntu2
6.4.5+dfsg-3ubuntu3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41267.json"