DEBIAN-CVE-2021-33193

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Source
https://security-tracker.debian.org/tracker/CVE-2021-33193
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-33193.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-33193
Upstream
Published
2021-08-16T08:15:11Z
Modified
2025-09-25T23:25:18.075888Z
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
Summary
[none]
Details

A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.

References

Affected packages

Debian:11 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.48-3.1+deb11u1

Affected versions

2.*

2.4.48-3.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.48-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.48-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.48-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}