Security Bulletin
Summary
Two vulnerabilities have been addressed in the GSKit component of IBM HTTP Server.
Vulnerability Details
CVEID: CVE-2016-0201
DESCRIPTION: IBM GSKit could allow a remote attacker to obtain sensitive information, caused by a MD5 collision. An attacker could exploit this vulnerability to obtain authentication credentials.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109310 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2015-7420
DESCRIPTION: A vulnerability in GSKit could allow a remote attacker to obtain sensitive information. The GSKit PRNG state is duplicated during a fork() system call operation which results in a period of time where child processes may generate identical PRNG output to the parent.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107694 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
These vulnerabilities affect the following versions and releases of IBM HTTP Server (powered by Apache) component in all editions of WebSphere Application Server and bundling products.
- Version 8.5.5
- Version 8.5
- Version 8.0
Remediation/Fixes
APAR PI54962 addresses CVE-2016-0201.
APAR PI52395 addresses CVE-2015-7420.
Both of these APARs are included in the interim fix for PI54962. So applying the APAR interim fix will resolve both issues.
The recommended solution is to apply the interim fix, Fix Pack or PTF containing APAR PI54962 for each named product as soon as practical.
For affected IBM HTTP Server for WebSphere Application Server:
For V8.5.0.0 through 8.5.5.8 Full Profile:
· Apply Interim Fix PI54962
--OR--
· Apply Fix Pack 8.5.5.9 or later.
For V8.0.0.0 through 8.0.0.12:
· Apply Interim Fix PI54962
--OR--
· Apply Fix Pack 8.0.0.13 or later.
Workarounds and Mitigations
none
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Important Note
IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.
References
Acknowledgement
none
Change History
27 January 2016: original version published
03 February 2016: removed minimal fix packs needed
13 September 2016: updated fix pack release dates
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
07 September 2022
UID
swg21974507