Debian Security Bug TrackerDEBIANCVE:CVE-2019-18277CVE-2019-18277
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.013 Low
EPSS
Percentile
85.7%
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).
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | haproxy | < 2.0.6-1 | haproxy_2.0.6-1_all.deb |
| Debian | 11 | all | haproxy | < 2.0.6-1 | haproxy_2.0.6-1_all.deb |
| Debian | 10 | all | haproxy | < 1.8.19-1+deb10u3 | haproxy_1.8.19-1+deb10u3_all.deb |
| Debian | 999 | all | haproxy | < 2.0.6-1 | haproxy_2.0.6-1_all.deb |
| Debian | 13 | all | haproxy | < 2.0.6-1 | haproxy_2.0.6-1_all.deb |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.013 Low
EPSS
Percentile
85.7%