CVE-2019-17638 – org.eclipse.jetty:jetty-server

Package

Manager: maven
Name: org.eclipse.jetty:jetty-server
Vulnerable Version: >=9.4.27 <9.4.30.v20200611

Severity

Level: Critical

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

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

EPSS: 0.27647 pctl0.96264

Details

Operation on a Resource after Expiration or Release in Jetty Server In Eclipse Jetty, versions 9.4.27.v20200227 to 9.4.29.v20200521, in case of too large response headers, Jetty throws an exception to produce an HTTP 431 error. When this happens, the ByteBuffer containing the HTTP response headers is released back to the ByteBufferPool twice. Because of this double release, two threads can acquire the same ByteBuffer from the pool and while thread1 is about to use the ByteBuffer to write response1 data, thread2 fills the ByteBuffer with response2 data. Thread1 then proceeds to write the buffer that now contains response2 data. This results in client1, which issued request1 and expects responses, to see response2 which could contain sensitive data belonging to client2 (HTTP session ids, authentication credentials, etc.).

Metadata

Created: 2020-08-05T14:52:59Z
Modified: 2021-06-15T18:11:20Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/08/GHSA-x3rh-m7vp-35f2/GHSA-x3rh-m7vp-35f2.json
CWE IDs: ["CWE-672", "CWE-675"]
Alternative ID: GHSA-x3rh-m7vp-35f2
Finding: F067
Auto approve: 1