Security Bulletin: IBM Storage Ceph is vulnerable to Uncontrolled Resource Consumption and Improper Input Validation in Werkzeug (CVE-2023-46136, CVE-2023-25577, CVE-2023-23934)

Vulnerability Details

CVEID:   CVE-2023-46136
DESCRIPTION:   Werkzeug is a comprehensive WSGI web application library. If an upload of a file that starts with CR or LF and then is followed by megabytes of data without these characters: all of these bytes are appended chunk by chunk into internal bytearray and lookup for boundary is performed on growing buffer. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it. The amount of CPU time required can block worker processes from handling legitimate requests. This vulnerability has been patched in version 3.0.1.
CWE:   CWE-400: Uncontrolled Resource Consumption
CVSS Source:   IBM X-Force
CVSS Base score:   5.7
CVSS Vector:   (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2023-25577
DESCRIPTION:   Werkzeug is a comprehensive WSGI web application library. Prior to version 2.2.3, 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. The amount of CPU time required can block worker processes from handling legitimate requests. The amount of RAM required can trigger an out of memory kill of the process. Unlimited file parts can use up memory and file handles. If many concurrent requests are sent continuously, this can exhaust or kill all available workers. Version 2.2.3 contains a patch for this issue.
CWE:   CWE-770: Allocation of Resources Without Limits or Throttling
CVSS Source:   IBM X-Force
CVSS Base score:   7.5
CVSS Vector:   (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2023-23934
DESCRIPTION:   Werkzeug is a comprehensive WSGI web application library. 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. Werkzeug prior to 2.2.3 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. The issue is fixed in Werkzeug 2.2.3.
CWE:   CWE-20: Improper Input Validation
CVSS Source:   IBM X-Force
CVSS Base score:   2.6
CVSS Vector:   (CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N)