Security Bulletin: IBM Security Access Manager Appliance is affected by Kerberos vulnerabilities (CVE-2017-11368, CVE-2017-7562)

Summary

IBM Security Access Manager Appliance has addressed the following vulnerabilities.

Vulnerability Details

CVEID: CVE-2017-11368 DESCRIPTION: MIT Kerberos 5 is vulnerable to a denial of service, caused by a KDC assertion failure. By sending a specially-crafted request, a remote authenticated attacker could exploit this vulnerability to cause memory allocation failure.
CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/130207&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2017-7562 DESCRIPTION: MIT krb5 could allow a remote authenticated attacker to bypass security restrictions, caused by the improper validation of a forged certificate EKU and SAN. An attacker could exploit vulnerability to gain unauthorized access to the system to impersonate arbitrary principals under rare and erroneous circumstances.
CVSS Base Score: 6.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/143332&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)

Affected Products and Versions

Affected IBM Security Access Manager Appliance

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Affected Versions

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IBM Security Access Manager | 9.0.3.0 - 9.0.4.0

Remediation/Fixes

Upgrade to 9.0.5.0:

9.0.5-ISS-ISAM-FP0000

Workarounds and Mitigations

None.