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AUSCERT External Security Bulletin Redistribution
ESB-2020.2259
Security Bulletin: IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0
is vulnerable to a denial of service, caused by improper
handling of request headers.
1 July 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server
Publisher: IBM
Operating System: Linux variants
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-4046
Reference: ESB-2019.4679
ESB-2019.4357
ESB-2019.4074
ESB-2019.3731
Original Bulletin:
https://www.ibm.com/support/pages/node/6242192
Comment: This advisory references vulnerabilities in products which run on
platforms other than IBM. It is recommended that administrators
running IBM WebSphere Application Server check for an updated
version of the software for their operating system.
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IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a
denial of service, caused by improper handling of request headers.
Security Bulletin
Summary
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a
denial of service, caused by improper handling of request headers. A remote
attacker could exploit this vulnerability to cause the consumption of Memory.
IBM X-Force ID: 156242.
Vulnerability Details
CVEID: CVE-2019-4046
DESCRIPTION: IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is
vulnerable to a denial of service, caused by improper handling of request
headers. A remote attacker could exploit this vulnerability to cause the
consumption of Memory. IBM X-Force ID: 156242.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
156242 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
+--------------------+----------+
|Affected Product(s) |Version(s)|
+--------------------+----------+
|InfoSphere Streams |4.3.1.x |
+--------------------+----------+
|InfoSphere Streams |4.2.1.x |
+--------------------+----------+
|InfoSphere Streams |4.1.1.x |
+--------------------+----------+
Remediation/Fixes
NOTE:Fix Packs are available on IBM Fix Central.
To remediate/fix this issue, follow the instructions below:
Version 4.3.x: Apply 4.3.1 Fix Pack 2 (4.3.1.2) or higher .
Version 4.2.x: Apply 4.2.1 Fix Pack 10 (4.2.1.10) or higher .
Version 4.1.x: Apply 4.1.1 Fix Pack 12 (4.1.1.12) or higher .
Versions 4.0.x,3.2.x, 3.1.x, and 3.0.x: For versions earlier than 4.x.x, IBM
recommends upgrading to a fixed, supported version/release/platform of the
product. Customers who cannot upgrade and need to secure their installation
should open a PMR with IBM Technical Support and request assistance securing
their InfoSphere Streams system against the vulnerabilities identified in this
Security Bulletin.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
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