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AUSCERT External Security Bulletin Redistribution
Intel Processors Data Leakage Advisory
28 January 2020
AusCERT Security Bulletin Summary
Product: Intel processors
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Access Privileged Data -- Existing Account
CVE Names: CVE-2020-0549 CVE-2020-0548
Comment: This is the "Vector Register Sampling" vulnerability seen in
recent news reports.
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The latest security information on Intel products.
Intel Processors Data Leakage Advisory
Intel ID: INTEL-SA-00329
Advisory Category: Hardware
Impact of vulnerability: Information Disclosure
Severity rating : MEDIUM
Original release: 01/27/2020
Last revised: 01/27/2020
Potential security vulnerabilities in some Intel Processors may allow
information disclosure. Intel is releasing firmware updates to mitigate these
Description: Cleanup errors in some Intel Processors may allow an
authenticated user to potentially enable information disclosure via local
CVSS Base Score: 2.8 Low
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Description: Cleanup errors in some data cache evictions for some Intel
Processors may allow an authenticated user to potentially enable information
disclosure via local access.
CVSS Base Score: 6.5 Medium
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
A list of impacted products can be found here.
Intel will release Intel Processor microcode updates to our customers and
partners as part of our regular Intel Platform Update (IPU) process.
Intel recommends that users of affected Intel Processors check with their
system manufacturers and system software vendors and update to the latest
microcode update when available.
Additional technical details about these vulnerabilities can be found at:
Intel would like to thank the following individuals for finding, reporting and
coordinating these vulnerabilities to us.
Intel thanks TU Graz and KU Leuven for disclosure of CVE-2020-0549 .
Graz University of Technology: Moritz Lipp, Michael Schwarz, Daniel Gruss.
KU Leuven: Jo Van Bulck.
Intel thanks VU Amsterdam, for disclosure of CVE-2020-0548 and CVE-2020-0549 .
VUSec group at VU Amsterdam: Stephan van Schaik, Alyssa Milburn, Sebastian A
sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida.
Researchers from TU Graz and Ku Leuven provided Intel with a Proof of Concept
(POC) in May 2019 and researchers from VU Amsterdam provided Proof of Concept
(POC) in October 2019. Intel subsequently confirmed each submission
demonstrates CVE-2020-0549 individually.
Revision Date Description
1.0 01/27/2020 Initial Release
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