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Vulnerability Details : CVE-2019-17638

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).
Publish Date : 2020-07-09 Last Update Date : 2021-06-14
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 672

- Products Affected By CVE-2019-17638

# Product Type Vendor Product Version Update Edition Language
1 Application Eclipse Jetty 9.4.27 20200227 * * Version Details Vulnerabilities
2 Application Eclipse Jetty 9.4.28 20200408 * * Version Details Vulnerabilities
3 Application Eclipse Jetty 9.4.29 20200521 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Eclipse Jetty 3

- References For CVE-2019-17638

https://www.oracle.com/security-alerts/cpuApr2021.html
https://lists.apache.org/thread.html/r9584c4304c888f651d214341a939bd264ed30c9e3d0d30fe85097ecf@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20210127 [GitHub] [pulsar] GLouMcK opened a new issue #9347: Security Vulnerabilities - Black Duck Scan
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20201215 [GitHub] [pulsar] yanshuchong opened a new issue #8967: CVSS issue list
https://www.oracle.com/security-alerts/cpuoct2020.html
https://lists.apache.org/thread.html/rd98cfd012490cb02caa1a11aaa0cc38bff2d43bcce9b20c2f01063dd@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20201005 [GitHub] [pulsar] abhishekheaven7 closed issue #8203: Pulsar client with version 2.6.1 has critical vulnerability CVE-2019-17638
https://lists.apache.org/thread.html/r7fc5f2ed49641ea91c433e3cd0fc3d31c0278c87b82b15c33b881415@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20201005 [GitHub] [pulsar] abhishekheaven7 opened a new issue #8203: Pulsar client with version 2.6.1 has critical vulnerability CVE-2019-17638
https://lists.apache.org/thread.html/r9a2cfa56d30782a0c17a5deb951a622d1f5c8de48e1c3b578ffc2a84@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20200923 [GitHub] [pulsar] zymap commented on issue #8060: CVE-2019-17638 jetty server
https://lists.apache.org/thread.html/r29073905dc9139d0d7a146595694bf57bb9e35e5ec6aa73eb9c8443a@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20200929 [GitHub] [pulsar] sijie commented on issue #8060: CVE-2019-17638 jetty server
https://lists.apache.org/thread.html/rbe1f230e87ea947593145d0072d0097ddb0af10fee1161db8ca1546c@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20200929 [GitHub] [pulsar] sijie closed issue #8060: CVE-2019-17638 jetty server
https://lists.apache.org/thread.html/r81f58591fb4716fb867b36956f30c7c8ad4ab3f23abc952d9d86a2a0@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20200922 [GitHub] [pulsar] zymap commented on issue #8060: CVE-2019-17638 jetty server
https://lists.apache.org/thread.html/ra8661fc8c69c647cb06153c1485d48484a833d873f75dfe45937e9de@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20200914 [GitHub] [pulsar] klwilson227 opened a new issue #8060: CVE-2019-17638 jetty server
https://lists.apache.org/thread.html/r378e4cdec15e132575aa1dcb6296ffeff2a896745a8991522e266ad4@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20200912 [GitHub] [pulsar] codelipenghui closed issue #7970: pulsar-client vulnerability CVE-2019-17638
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XE6US6VPZHOWFMUSFGDS5V2DNQPY5MKB/
FEDORA FEDORA-2020-cf8ef2f333
https://lists.apache.org/thread.html/r4bdd3f7bb6820a79f9416b6667d718a06d269018619a75ce4b759318@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20200903 [GitHub] [pulsar] guyv opened a new issue #7970: pulsar-client vulnerability CVE-2019-17638
https://lists.apache.org/thread.html/r521168299e023fb075b57afe33d17ff1d09e8a10e0fd8c775ea0e028@%3Ccommits.pulsar.apache.org%3E
MLIST [pulsar-commits] 20200911 [GitHub] [pulsar] codelipenghui closed issue #7970: pulsar-client vulnerability CVE-2019-17638
https://bugs.eclipse.org/bugs/show_bug.cgi?id=564984 CONFIRM
http://www.openwall.com/lists/oss-security/2020/08/17/1
MLIST [oss-security] 20200817 Vulnerability in Jenkins

- Metasploit Modules Related To CVE-2019-17638

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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