DEBIAN-CVE-2021-39242

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Source
https://security-tracker.debian.org/tracker/CVE-2021-39242
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-39242.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-39242
Upstream
Published
2021-08-17T19:15:08.320Z
Modified
2025-11-20T10:15:07.752380Z
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

An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.

References

Affected packages

Debian:11 / haproxy

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.9-2+deb11u1

Affected versions

2.*

2.2.9-2
2.2.9-2+deb11u1~bpo10+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / haproxy

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.16-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / haproxy

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.16-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / haproxy

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.16-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}