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Security Bulletin: IBM has announced a release for IBM Security Identity Governance and Intelligence in response to security vulnerability (CVE-2018-5391)

Security Bulletin


Summary

IBM has announced a release for IBM Security Identity Governance and Intelligence (IGI) in response to security vulnerability. A vulnerability in the Linux kernel, included in IBM Security Identity Governance and Intelligence (IGI), affects the way the Linux kernel handles reassembly of fragmented IPv4 and IPv6 packets. By sending specially crafted IP fragments with random offsets, a remote attacker could exploit this vulnerability to exhaust all available CPU resources and cause a denial of service.

Vulnerability Details

CVEID: CVE-2018-5391
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by the improper handling of the reassembly of fragmented IPv4 and IPv6 packets by the IP implementation. By sending specially crafted IP fragments with random offsets, a remote attacker could exploit this vulnerability to exhaust all available CPU resources and cause a denial of service.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/148388 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)

Affected Products and Versions

IBM Security Identity Governance and Intelligence (IGI) 5.2.4, 5.2.4.1

Remediation/Fixes

Product Name

VRMF First Fix
IGI 5.2.4
IGI 5.2.4.1

Workarounds and Mitigations

None

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Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

09 July 2019: Original Version Published

*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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Product Alias/Synonym

IGI
IGA

Document information

More support for: IBM Security Identity Governance and Intelligence

Software version: 5.2.4, 5.2.4.1

Operating system(s): Appliance

Reference #: 0958679

Modified date: 19 July 2019