CVE-2021-3452: Input Validation
First published: Fri Jul 16 2021(Updated: )
A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.
Credit: psirt@lenovo.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Lenovo BIOS | ||
| Lenovo ThinkPad 11e 3rd Gen Firmware | ||
| Lenovo ThinkPad 11e 4th gen | ||
| Lenovo ThinkPad 11e (5th Gen) | ||
| Lenovo ThinkPad 11e Yoga Gen 6 Firmware | ||
| Lenovo ThinkPad 13 Gen 2 Firmware | ||
| Lenovo Thinkpad E14 Gen 2 | ||
| Lenovo Thinkpad E15 Gen 2 Firmware | ||
| Lenovo ThinkPad L13 | ||
| Lenovo ThinkPad L13 Gen 2 Firmware | ||
| Lenovo ThinkPad L13 Yoga Gen 1 | ||
| Lenovo ThinkPad L13 Yoga Gen 2 | ||
| Lenovo ThinkPad L14 | ||
| Lenovo ThinkPad L14 | ||
| Lenovo ThinkPad L15 | ||
| Lenovo ThinkPad L15 Gen 2 | ||
| lenovo thinkpad l380 | ||
| lenovo thinkpad l380 yoga | ||
| Lenovo Thinkpad L390 Firmware | ||
| Lenovo thinkpad l390 yoga | ||
| Lenovo ThinkPad T460 | ||
| Lenovo ThinkPad X12 Detachable Gen 1 Firmware | ||
| Lenovo ThinkPad x260 | ||
| lenovo thinkpad x380 yoga | ||
| lenovo ThinkPad yoga 11e 3rd gen | ||
| lenovo ThinkPad yoga 11e 4th gen | ||
| lenovo thinkpad yoga 370 | ||
| Lenovo BIOS |
Remedy
Update system firmware to the version (or newer) indicated for your model in the Product Impact section of LEN-65529.
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Reference Links
Frequently Asked Questions
What is CVE-2021-3452?
CVE-2021-3452 is a potential vulnerability in the system shutdown SMI callback function in some ThinkPad models.
How can an attacker exploit CVE-2021-3452?
An attacker with local access and elevated privileges can exploit CVE-2021-3452 to execute arbitrary code.
Which Lenovo models are affected by CVE-2021-3452?
CVE-2021-3452 affects some ThinkPad models, such as Lenovo Thinkpad L13, Lenovo Thinkpad L380, Lenovo ThinkPad T460, and more.
What is the severity of CVE-2021-3452?
The severity of CVE-2021-3452 is medium, with a severity value of 6.7 out of 10.
How can I fix CVE-2021-3452?
To fix CVE-2021-3452, it is recommended to install the BIOS update provided by Lenovo.
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- collector/mitre-cve
- source/MITRE
- agent/author
- agent/severity
- agent/last-modified-date
- agent/references
- agent/weakness
- agent/remedy
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/lenovo
- canonical/lenovo bios
- canonical/lenovo thinkpad 11e 3rd gen firmware
- canonical/lenovo thinkpad 11e 4th gen
- canonical/lenovo thinkpad 11e (5th gen)
- canonical/lenovo thinkpad 11e yoga gen 6 firmware
- canonical/lenovo thinkpad 13 gen 2 firmware
- canonical/lenovo thinkpad e14 gen 2
- canonical/lenovo thinkpad e15 gen 2 firmware
- canonical/lenovo thinkpad l13
- canonical/lenovo thinkpad l13 gen 2 firmware
- canonical/lenovo thinkpad l13 yoga gen 1
- canonical/lenovo thinkpad l13 yoga gen 2
- canonical/lenovo thinkpad l14
- canonical/lenovo thinkpad l15
- canonical/lenovo thinkpad l15 gen 2
- canonical/lenovo thinkpad l380
- canonical/lenovo thinkpad l380 yoga
- canonical/lenovo thinkpad l390 firmware
- canonical/lenovo thinkpad l390 yoga
- canonical/lenovo thinkpad t460
- canonical/lenovo thinkpad x12 detachable gen 1 firmware
- canonical/lenovo thinkpad x260
- canonical/lenovo thinkpad x380 yoga
- canonical/lenovo thinkpad yoga 11e 3rd gen
- canonical/lenovo thinkpad yoga 11e 4th gen
- canonical/lenovo thinkpad yoga 370