Bug 1897402 (CVE-2020-12912) - CVE-2020-12912 kernel: unprivileged access to RAPL allows for side channel attacks
Summary: CVE-2020-12912 kernel: unprivileged access to RAPL allows for side channel at...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-12912
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1897506
Blocks: 1897295
TreeView+ depends on / blocked
 
Reported: 2020-11-13 01:48 UTC by Wade Mealing
Modified: 2021-02-16 18:55 UTC (History)
45 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2020-11-13 11:28:31 UTC
Embargoed:

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Description Wade Mealing 2020-11-13 01:48:35 UTC 
A flaw in the Linux kernels implementation of RAPL for AMD CPUS allowed a user with a local account to use the RAPL interface to infer CPU execution state.  This could allow information leak of sensitive information across security boundaries.
Comment 2 Wade Mealing 2020-11-13 02:28:23 UTC 
External References:

https://support.lenovo.com/lu/uk/product_security/LEN-50481
https://www.amd.com/en/corporate/product-security
https://www.cybersecurity-help.cz/vdb/SB2020111118
Comment 3 Petr Matousek 2020-11-13 09:14:45 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1897506]
Comment 4 Product Security DevOps Team 2020-11-13 11:28:31 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-12912
Comment 5 Justin M. Forbes 2020-12-03 16:42:41 UTC 
This was fixed for Fedora with the 5.9.9 stable kernel updates.
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