DEBIAN-CVE-2019-18277

Source
https://security-tracker.debian.org/tracker/CVE-2019-18277
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-18277.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2019-18277
Upstream
Published
2019-10-23T14:15:10Z
Modified
2025-09-30T03:54:35Z
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 flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missing the "chunked" value were not being correctly rejected. The impact was limited but if combined with the "http-reuse always" setting, it could be used to help construct an HTTP request smuggling attack against a vulnerable component employing a lenient parser that would ignore the content-length header as soon as it saw a transfer-encoding one (even if not entirely valid according to the specification).

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
2.0.6-1

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
2.0.6-1

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
2.0.6-1

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
2.0.6-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}