CVE-2021-1921: Race Condition

Published Nov 1, 2021
·
Updated

Possible memory corruption due to Improper handling of hypervisor unmap operations for concurrent memory operations in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

Affected Software

115 affected components
Google Android
Qualcomm Aqt1000 Firmware
Qualcomm Aqt1000
Qualcomm Qca6390 Firmware
Qualcomm Qca6390
Qualcomm Qca6391 Firmware
Qualcomm Qca6391
Qualcomm Qca6420 Firmware
Qualcomm Qca6420
Qualcomm Qca6421 Firmware
Qualcomm Qca6421
Qualcomm Qca6426 Firmware
Qualcomm Qca6426
Qualcomm Qca6430 Firmware
Qualcomm Qca6430
Qualcomm Qca6431 Firmware
Qualcomm Qca6431
Qualcomm Qca6436 Firmware
Qualcomm Qca6436
Qualcomm Qca6574au Firmware
Qualcomm QCA6574AU
Qualcomm Qca6595 Firmware
Qualcomm Qca6595
Qualcomm Qcm6490 Firmware
Qualcomm Qcm6490
Qualcomm Qcs6490 Firmware
Qualcomm Qcs6490
Qualcomm Qrb5165 Firmware
Qualcomm Qrb5165
Qualcomm Qrb5165n Firmware
Qualcomm Qrb5165n
Qualcomm Qsm8350 Firmware
Qualcomm Qsm8350
Qualcomm Sa6155p Firmware
Qualcomm Sa6155p
Qualcomm Sa8195p Firmware
Qualcomm Sa8195p
Qualcomm Sd 8c Firmware
Qualcomm Sd 8c
Qualcomm Sd 8cx Firmware
Qualcomm SD 8CX
Qualcomm Sd675 Firmware
Qualcomm Sd675
Qualcomm Sd778g Firmware
Qualcomm Sd778g
Qualcomm Sd780g Firmware
Qualcomm Sd780g
Qualcomm Sd855 Firmware
Qualcomm Sd855
Qualcomm Sd865 5g Firmware
Qualcomm Sd865 5g
Qualcomm Sd870 Firmware
Qualcomm Sd870
Qualcomm Sd888 5g Firmware
Qualcomm Sd888 5g
Qualcomm Sdm830 Firmware
Qualcomm Sdm830
Qualcomm Sdx24 Firmware
Qualcomm SDX24
Qualcomm Sdx55 Firmware
Qualcomm Sdx55
Qualcomm Sdx55m Firmware
Qualcomm Sdx55m
Qualcomm Sdxr2 5g Firmware
Qualcomm Sdxr2 5g
Qualcomm Sm7325 Firmware
Qualcomm Sm7325
Qualcomm Wcd9340 Firmware
Qualcomm Wcd9340
Qualcomm Wcd9341 Firmware
Qualcomm Wcd9341
Qualcomm Wcd9360 Firmware
Qualcomm Wcd9360
Qualcomm Wcd9370 Firmware
Qualcomm Wcd9370
Qualcomm Wcd9375 Firmware
Qualcomm Wcd9375
Qualcomm Wcd9380 Firmware
Qualcomm Wcd9380
Qualcomm Wcd9385 Firmware
Qualcomm Wcd9385
Qualcomm Wcn3950 Firmware
Qualcomm Wcn3950
Qualcomm Wcn3980 Firmware
Qualcomm Wcn3980
Qualcomm Wcn3990 Firmware
Qualcomm Wcn3990
Qualcomm Wcn3998 Firmware
Qualcomm Wcn3998
Qualcomm Wcn6740 Firmware
Qualcomm Wcn6740
Qualcomm Wcn6750 Firmware
Qualcomm Wcn6750
Qualcomm Wcn6850 Firmware
Qualcomm Wcn6850
Qualcomm Wcn6851 Firmware
Qualcomm Wcn6851
Qualcomm Wcn6855 Firmware
Qualcomm WCN6855
Qualcomm Wcn6856 Firmware
Qualcomm Wcn6856
Qualcomm Wcn7850 Firmware
Qualcomm Wcn7850
Qualcomm Wcn7851 Firmware
Qualcomm Wcn7851
Qualcomm Whs9410 Firmware
Qualcomm Whs9410
Qualcomm Wsa8810 Firmware
Qualcomm Wsa8810
Qualcomm Wsa8815 Firmware
Qualcomm Wsa8815
Qualcomm Wsa8830 Firmware
Qualcomm Wsa8830
Qualcomm Wsa8835 Firmware
Qualcomm Wsa8835

Event History

Nov 1, 2021
CVE Published
via Android·12:00 AM
Nov 12, 2021
CVE Published
via MITRE·06:15 AM
Data Sourced
via MITRE·06:15 AM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2021-1921?

The severity of CVE-2021-1921 has been classified as critical due to the potential for memory corruption.

2

How do I fix CVE-2021-1921?

To fix CVE-2021-1921, apply the latest firmware updates provided by Qualcomm or vendor-specific patches to the affected devices.

3

Which devices are affected by CVE-2021-1921?

CVE-2021-1921 affects a variety of Qualcomm devices, including those in the Snapdragon Auto, Compute, and Mobile product lines.

4

What are the potential impacts of CVE-2021-1921?

The potential impacts include system crashes and exploitation risks due to improper memory handling.

5

Is CVE-2021-1921 still vulnerable if I have updated my device?

If you have updated your device with the latest security patches, it is no longer vulnerable to CVE-2021-1921.

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