Protected-information disclosure via vulnerable microcode loading
Published Nov 20, 2021 · Updated Aug 3, 2024
Information disclosure in NVIDIA GPU and Tegra hardware allows local users with administrative privileges to access protected information. The attack identifies exploitable microcode in the internal microcontroller and loads it to expose protected data; NVIDIA has not disclosed the faulty microcode operation. Exploitation requires OS administrative or kernel rights and direct GPU access on bare metal or pass-through; virtualized GPUs and Ampere hardware are not exposed.
Summary
What happened
Information disclosure in NVIDIA GPU and Tegra hardware allows local users with administrative privileges to access protected information. The attack identifies exploitable microcode in the internal microcontroller and loads it to expose protected data; NVIDIA has not disclosed the faulty microcode operation. Exploitation requires OS administrative or kernel rights and direct GPU access on bare metal or pass-through; virtualized GPUs and Ampere hardware are not exposed.
The record
- CVE
- CVE-2021-23219
- Published
- Nov 20, 2021
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-1190
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Nov 20, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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