CVE-2023-26048 OutOfMemoryError for large multipart without filename in Eclipse Jetty

2023-04-1820:30:20

CWE-400

GitHub_M

www.cve.org

eclipse jetty

java

outofmemoryerror

multipart

servlet engine

httpservletrequest

multipartconfig

maxrequestsize

filesizethreshold

security patch

upgrade

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.6 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

61.3%

JSON

Jetty is a java based web server and servlet engine. In affected versions servlets with multipart support (e.g. annotated with @MultipartConfig) that call HttpServletRequest.getParameter() or HttpServletRequest.getParts() may cause OutOfMemoryError when the client sends a multipart request with a part that has a name but no filename and very large content. This happens even with the default settings of fileSizeThreshold=0 which should stream the whole part content to disk. An attacker client may send a large multipart request and cause the server to throw OutOfMemoryError. However, the server may be able to recover after the OutOfMemoryError and continue its service – although it may take some time. This issue has been patched in versions 9.4.51, 10.0.14, and 11.0.14. Users are advised to upgrade. Users unable to upgrade may set the multipart parameter maxRequestSize which must be set to a non-negative value, so the whole multipart content is limited (although still read into memory).

CNA Affected

[
  {
    "vendor": "eclipse",
    "product": "jetty.project",
    "versions": [
      {
        "version": "< 9.4.51",
        "status": "affected"
      },
      {
        "version": ">= 10.0.0, < 10.0.14",
        "status": "affected"
      },
      {
        "version": ">= 11.0.0, < 11.0.14",
        "status": "affected"
      }
    ]
  }
]