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Security Bulletin: IBM Security Guardium is affected by Linux kernel privesc: Dirty COW vulnerability (CVE-2016-5195)

Security Bulletin


Summary

 Linux Kernel could allow a local attacker to gain elevated privileges on the system, caused by a race condition when handling the copy-on-write (COW) breakage of private read-only memory mappings by the memory subsystem. IBM Security Guardium has provided a fix for this vulnerability

Vulnerability Details

CVEID: CVE-2016-5195
DESCRIPTION: Linux Kernel could allow a local attacker to gain elevated privileges on the system, caused by a race condition when handling the copy-on-write (COW) breakage of private read-only memory mappings by the memory subsystem. An attacker could exploit this vulnerability to gain write access to read-only memory mappings and elevated privileges on the system. Note: This vulnerability is known as the Dirty COW bug.
CVSS Base Score: 8.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/118170 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM Security Guardium V8.2

IBM Security Guardium V 9, 9.1, 9.5

IBM Security Guardium V10, 10.0.1, 10.1, 10.1.2

Remediation/Fixes

Product

VRMFRemediation/First Fix
IBM Security Guardium 8.2
End of Service Sept 30 2016, Full Extended Support customers must contact L2 support for more information
IBM Security Guardium 9xhttp://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%2BSecurity&product=ibm/Information+Management/InfoSphere+Guardium&release=All&platform=All&function=fixId&fixids=SqlGuard_9.0p6022_SecurityUpdate&includeSupersedes=0&source=fc
IBM Security Guardium 10xhttp://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%2BSecurity&product=ibm/Information+Management/InfoSphere+Guardium&release=All&platform=All&function=fixId&fixids=SqlGuard_10.0p6022_SecurityUpdate&includeSupersedes=0&source=fc

Workarounds and Mitigations

None

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

12/2o/2016 - 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

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:
16 June 2018

UID

swg21995667

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