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
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.021 Low
EPSS
Percentile
89.0%
Waitress through version 1.3.1 implemented a “MAY” part of the RFC7230 which states: “Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR.” Unfortunately if a front-end server does not parse header fields with an LF the same way as it does those with a CRLF it can lead to the front-end and the back-end server parsing the same HTTP message in two different ways. This can lead to a potential for HTTP request smuggling/splitting whereby Waitress may see two requests while the front-end server only sees a single HTTP message. This issue is fixed in Waitress 1.4.0.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Alpine | edge-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.11-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.12-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.13-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.14-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.15-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.16-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.17-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.18-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
Alpine | 3.19-community | noarch | py3-waitress | < 1.4.0-r0 | UNKNOWN |
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
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.021 Low
EPSS
Percentile
89.0%