Bug 2263402 (CVE-2023-20587) - CVE-2023-20587 hw: amd: failure to sanitize input in SMM
Summary: CVE-2023-20587 hw: amd: failure to sanitize input in SMM
Keywords:
Status: NEW
Alias: CVE-2023-20587
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2264237
Blocks: 2263273
TreeView+ depends on / blocked
 
Reported: 2024-02-08 17:47 UTC by Nick Tait
Modified: 2024-04-04 10:46 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description Nick Tait 2024-02-08 17:47:13 UTC 
A flaw found for the AMD CPU. Improper Access Control in System Management Mode (SMM) may allow an attacker access to the SPI flash potentially leading to arbitrary code execution.

Reference:
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html
Comment 5 Nick Tait 2024-02-14 17:31:27 UTC 
Created linux-firmware tracking bugs for this issue:

Affects: fedora-all [bug 2264237]
Comment 6 Peter Robinson 2024-02-25 14:06:38 UTC 
This is a UEFI firmware update from the device vendor, not an update in linux-firmware, these should be closed out as such.
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