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CVE-2019-17638

Status Candidate

Overview

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 other data. Thread1 then proceeds to write the buffer that now contains different data. This results in client1, which issued request1 seeing data from another request or response which could contain sensitive data belonging to client2 (HTTP session ids, authentication credentials, etc.). If the Jetty version cannot be upgraded, the vulnerability can be significantly reduced by configuring a responseHeaderSize significantly larger than the requestHeaderSize (12KB responseHeaderSize and 8KB requestHeaderSize).

Related Files

Red Hat Security Advisory 2020-5568-01
Posted Dec 16, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5568-01 - This release of Red Hat Fuse 7.8.0 serves as a replacement for Red Hat Fuse 7.7, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include XML injection, bypass, code execution, cross site scripting, denial of service, deserialization, file disclosure, information leakage, memory leak, out of bounds read, privilege escalation, server-side request forgery, and remote SQL injection vulnerabilities.

tags | advisory, remote, denial of service, vulnerability, code execution, xss, sql injection, memory leak
systems | linux, redhat
advisories | CVE-2018-1000873, CVE-2019-0205, CVE-2019-0210, CVE-2019-10202, CVE-2019-10219, CVE-2019-11777, CVE-2019-12406, CVE-2019-12423, CVE-2019-13990, CVE-2019-14900, CVE-2019-17566, CVE-2019-17638, CVE-2019-19343, CVE-2019-2692, CVE-2019-3773, CVE-2019-3774, CVE-2020-10683, CVE-2020-10740, CVE-2020-11612, CVE-2020-11971, CVE-2020-11972, CVE-2020-11973, CVE-2020-11980, CVE-2020-11989, CVE-2020-11994, CVE-2020-13692, CVE-2020-1393
SHA-256 | 4d8c51d0d7d15381aedd8f056934e518c8d3ae79ede9556857b44d07aaa1f17a
Red Hat Security Advisory 2020-4223-01
Posted Oct 22, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4223-01 - Jenkins is a continuous integration server that monitors executions of repeated jobs, such as building a software project or jobs run by cron. Issues addressed include cross site scripting and information leakage vulnerabilities.

tags | advisory, vulnerability, xss
systems | linux, redhat
advisories | CVE-2019-17638, CVE-2020-2229, CVE-2020-2230, CVE-2020-2231
SHA-256 | 0a0c1e6d82b3f3d1ef7c4e264d5405abd9b644db1717e648010b8853d8377c2f
Red Hat Security Advisory 2020-4220-01
Posted Oct 13, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4220-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. Issues addressed include cross site scripting and information leakage vulnerabilities.

tags | advisory, vulnerability, xss
systems | linux, redhat
advisories | CVE-2019-17638, CVE-2020-2229, CVE-2020-2230, CVE-2020-2231
SHA-256 | ea23f135396f05c96a3e308dce9416e61828fe794c9b9144cea683bc4fd771f2
Red Hat Security Advisory 2020-3841-01
Posted Sep 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3841-01 - Jenkins is a continuous integration server that monitors executions of repeated jobs, such as building a software project or jobs run by cron. Issues addressed include cross site scripting and information leakage vulnerabilities.

tags | advisory, vulnerability, xss
systems | linux, redhat
advisories | CVE-2019-17638, CVE-2020-2229, CVE-2020-2230, CVE-2020-2231
SHA-256 | 77a91d7eb8ec634429339830c6925d60cfecc790452b9ca6402775e98428831d
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