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                         AUSCERT Security Bulletin

                               ASB-2019.0098
               Intel Core Processors Memory Mapping Advisory
                               10 April 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Intel Microprocessors
Operating System:     Intel
Impact/Access:        Access Confidential Data -- Existing Account
Resolution:           Mitigation
CVE Names:            CVE-2019-0162  
Member content until: Friday, May 10 2019

OVERVIEW

        Intel has discovered vulnerabilities in some Intel microprocessor 
        products. [1]


IMPACT

        Intel has provided the following information regarding the vulnerabilities:
        
        "CVEID: CVE-2019-0162
        
        Description: Memory access in virtual memory mapping for some microprocessors
        may allow an authenticated user to potentially enable information disclosure
        via local access.
        
        CVSS Base Score: 3.8 Low
        
        CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
        
        Affected Products:
        
        Some Microprocessors with Virtual Memory Mapping." [1]


MITIGATION

        Intel has provided the following guidance:
        
        "Intel recommends that users follow existing best practices to mitigate
        exploitation of this vulnerability. More information on these practices can be
        found here:
        
        Security Best Practices For Side Channel Resistance:
        
        https://software.intel.com/security-software-guidance/insights/
        security-best-practices-side-channel-resistance
        
        Guidelines For Mitigating Timing Side Channels Against Cryptographic
        Implementations:
        
        https://software.intel.com/security-software-guidance/insights/
        guidelines-mitigating-timing-side-channels-against-cryptographic-implementations
        
        Additional information regarding Spoiler:
        
        https://software.intel.com/security-software-guidance/insights/
        more-information-spoiler " [1]


REFERENCES

        [1] Intel Core Processors Memory Mapping Advisory
            https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00238.html

AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours 
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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