7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.2 High
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
48.6%
Debian LTS Advisory DLA-3346-1 [email protected]
https://www.debian.org/lts/security/ Sylvain Beucler
February 27, 2023 https://wiki.debian.org/LTS
Package : python-werkzeug
Version : 0.14.1+dfsg1-4+deb10u2
CVE ID : CVE-2023-23934 CVE-2023-25577
Debian Bug : 1031370
Two vulnerabilities were discovered in Werkzeug, a collection of
utilities for WSGI (web) applications. An attacker may inject cookies
in specific situations, and cause a denial of service (DoS).
CVE-2023-23934
Werkzeug will parse the cookie `=__Host-test=bad` as
__Host-test=bad`. If a Werkzeug application is running next to a
vulnerable or malicious subdomain which sets such a cookie using a
vulnerable browser, the Werkzeug application will see the bad
cookie value but the valid cookie key. Browsers may allow
"nameless" cookies that look like `=value` instead of
`key=value`. A vulnerable browser may allow a compromised
application on an adjacent subdomain to exploit this to set a
cookie like `=__Host-test=bad` for another subdomain.
CVE-2023-25577
Werkzeug's multipart form data parser will parse an unlimited
number of parts, including file parts. Parts can be a small amount
of bytes, but each requires CPU time to parse and may use more
memory as Python data. If a request can be made to an endpoint
that accesses `request.data`, `request.form`, `request.files`, or
`request.get_data(parse_form_data=False)`, it can cause
unexpectedly high resource usage. This allows an attacker to cause
a denial of service by sending crafted multipart data to an
endpoint that will parse it.
For Debian 10 buster, these problems have been fixed in version
0.14.1+dfsg1-4+deb10u2.
We recommend that you upgrade your python-werkzeug packages.
For the detailed security status of python-werkzeug please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/python-werkzeug
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | all | python3-werkzeug | < 0.14.1+dfsg1-4+deb10u2 | python3-werkzeug_0.14.1+dfsg1-4+deb10u2_all.deb |
Debian | 10 | all | python-werkzeug | < 0.14.1+dfsg1-4+deb10u2 | python-werkzeug_0.14.1+dfsg1-4+deb10u2_all.deb |
Debian | 10 | all | python-werkzeug-doc | < 0.14.1+dfsg1-4+deb10u2 | python-werkzeug-doc_0.14.1+dfsg1-4+deb10u2_all.deb |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.2 High
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
48.6%