CVE-2020-27218 – org.eclipse.jetty:jetty-server

Package

Manager: maven
Name: org.eclipse.jetty:jetty-server
Vulnerable Version: >=9.4.0 <9.4.35.v20201120

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS: 0.00352 pctl0.56897

Details

Buffer not correctly recycled in Gzip Request inflation ### Impact If GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection and if an attacker can send a request with a body that is received entirely by not consumed by the application, then a subsequent request on the same connection will see that body prepended to it's body. The attacker will not see any data, but may inject data into the body of the subsequent request CVE score is [4.8 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L&version=3.1) ### Workarounds The problem can be worked around by either: - Disabling compressed request body inflation by GzipHandler. - By always fully consuming the request content before sending a response. - By adding a `Connection: close` to any response where the servlet does not fully consume request content.

Metadata

Created: 2020-12-02T18:28:18Z
Modified: 2024-02-21T17:23:12Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/12/GHSA-86wm-rrjm-8wh8/GHSA-86wm-rrjm-8wh8.json
CWE IDs: ["CWE-226"]
Alternative ID: GHSA-86wm-rrjm-8wh8
Finding: F052
Auto approve: 1