Security Bulletin: Vulnerabilities in the GSKit component of IBM HTTP Server (CVE-2016-0201 and CVE-2015-7420)

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