CVE-2023-28576: Time-of-check Time-of-use (TOCTOU) Race Condition in Camera Kernel Driver

Published Aug 8, 2023
·
Updated

The buffer obtained from kernel APIs such as cammemgetcpubuf() may be readable/writable in userspace after kernel accesses it. In other words, user mode may race and modify the packet header (e.g. header.count), causing checks (e.g. size checks) in kernel code to be invalid. This may lead to out-of-bounds read/write issues.

Affected Software

124 affected components
All of the following
Qualcomm Fastconnect 6800 Firmware
Qualcomm Fastconnect 6800
All of the following
Qualcomm Fastconnect 6900 Firmware
Qualcomm Fastconnect 6900
All of the following
Qualcomm Fastconnect 7800 Firmware
Qualcomm Fastconnect 7800
All of the following
Qualcomm Qca6391 Firmware
Qualcomm Qca6391
All of the following
Qualcomm Qca6426 Firmware
Qualcomm Qca6426
All of the following
Qualcomm Qca6436 Firmware
Qualcomm Qca6436
All of the following
Qualcomm Qcn9074 Firmware
Qualcomm Qcn9074
All of the following
Qualcomm Qcs410 Firmware
Qualcomm Qcs410
All of the following
Qualcomm Qcs610 Firmware
Qualcomm Qcs610
All of the following
Qualcomm Sd865 5g Firmware
Qualcomm Sd865 5g
All of the following
Qualcomm Snapdragon 8 Gen 1 Firmware
Qualcomm Snapdragon 8 Gen 1
All of the following
Qualcomm Snapdragon 865 5g Firmware
Qualcomm Snapdragon 865 5g
All of the following
Qualcomm Snapdragon 865\+ 5g Firmware
Qualcomm Snapdragon 865\+ 5g
All of the following
Qualcomm Snapdragon 870 5g Firmware
Qualcomm Snapdragon 870 5g
All of the following
Qualcomm Snapdragon X55 5g Firmware
Qualcomm Snapdragon X55 5g
All of the following
Qualcomm Snapdragon Xr2 5g Firmware
Qualcomm Snapdragon Xr2 5g
All of the following
Qualcomm Sw5100 Firmware
Qualcomm Sw5100
All of the following
Qualcomm Sw5100p Firmware
Qualcomm Sw5100p
All of the following
Qualcomm Sxr2130 Firmware
Qualcomm Sxr2130
All of the following
Qualcomm Wcd9341 Firmware
Qualcomm Wcd9341
All of the following
Qualcomm Wcd9370 Firmware
Qualcomm Wcd9370
All of the following
Qualcomm Wcd9380 Firmware
Qualcomm Wcd9380
All of the following
Qualcomm Wcn3660b Firmware
Qualcomm Wcn3660b
All of the following
Qualcomm Wcn3680b Firmware
Qualcomm Wcn3680b
All of the following
Qualcomm Wcn3950 Firmware
Qualcomm Wcn3950
All of the following
Qualcomm Wcn3980 Firmware
Qualcomm Wcn3980
All of the following
Qualcomm Wcn3988 Firmware
Qualcomm Wcn3988
All of the following
Qualcomm Wsa8810 Firmware
Qualcomm Wsa8810
All of the following
Qualcomm Wsa8815 Firmware
Qualcomm Wsa8815
All of the following
Qualcomm Wsa8830 Firmware
Qualcomm Wsa8830
All of the following
Qualcomm Wsa8835 Firmware
Qualcomm Wsa8835
Qualcomm Fastconnect 6800 Firmware
Qualcomm Fastconnect 6800
Qualcomm Fastconnect 6900 Firmware
Qualcomm Fastconnect 6900
Qualcomm Fastconnect 7800 Firmware
Qualcomm Fastconnect 7800
Qualcomm Qca6391 Firmware
Qualcomm Qca6391
Qualcomm Qca6426 Firmware
Qualcomm Qca6426
Qualcomm Qca6436 Firmware
Qualcomm Qca6436
Qualcomm Qcn9074 Firmware
Qualcomm Qcn9074
Qualcomm Qcs410 Firmware
Qualcomm Qcs410
Qualcomm Qcs610 Firmware
Qualcomm Qcs610
Qualcomm Sd865 5g Firmware
Qualcomm Sd865 5g
Qualcomm Snapdragon 8 Gen 1 Firmware
Qualcomm Snapdragon 8 Gen 1
Qualcomm Snapdragon 865 5g Firmware
Qualcomm Snapdragon 865 5g
Qualcomm Snapdragon 865\+ 5g Firmware
Qualcomm Snapdragon 865\+ 5g
Qualcomm Snapdragon 870 5g Firmware
Qualcomm Snapdragon 870 5g
Qualcomm Snapdragon X55 5g Firmware
Qualcomm Snapdragon X55 5g
Qualcomm Snapdragon Xr2 5g Firmware
Qualcomm Snapdragon Xr2 5g
Qualcomm Sw5100 Firmware
Qualcomm Sw5100
Qualcomm Sw5100p Firmware
Qualcomm Sw5100p
Qualcomm Sxr2130 Firmware
Qualcomm Sxr2130
Qualcomm Wcd9341 Firmware
Qualcomm Wcd9341
Qualcomm Wcd9370 Firmware
Qualcomm Wcd9370
Qualcomm Wcd9380 Firmware
Qualcomm Wcd9380
Qualcomm Wcn3660b Firmware
Qualcomm Wcn3660b
Qualcomm Wcn3680b Firmware
Qualcomm Wcn3680b
Qualcomm Wcn3950 Firmware
Qualcomm Wcn3950
Qualcomm Wcn3980 Firmware
Qualcomm Wcn3980
Qualcomm Wcn3988 Firmware
Qualcomm Wcn3988
Qualcomm Wsa8810 Firmware
Qualcomm Wsa8810
Qualcomm Wsa8815 Firmware
Qualcomm Wsa8815
Qualcomm Wsa8830 Firmware
Qualcomm Wsa8830
Qualcomm Wsa8835 Firmware
Qualcomm Wsa8835

Event History

Aug 8, 2023
CVE Published
via MITRE·09:15 AM
Data Sourced
via MITRE·09:15 AM
DescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2023-28576?

CVE-2023-28576 is a vulnerability that allows user mode to race and modify the packet header in kernel code, leading to invalid checks.

2

Which software is affected by CVE-2023-28576?

Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qca6426 Firmware, Qualcomm Qca6436 Firmware, Qualcomm Qcn9074 Firmware, Qualcomm Qcs410 Firmware, Qualcomm Qcs610 Firmware, Qualcomm Snapdragon 8 Gen 1 Firmware, Qualcomm Snapdragon 865 5g Firmware, Qualcomm Snapdragon 865+ 5g Firmware, Qualcomm Snapdragon 870 5g Firmware, Qualcomm Snapdragon X55 5g Firmware, Qualcomm Snapdragon Xr2 5g Firmware, Qualcomm Sxr2130 Firmware, Qualcomm Wcd9341 Firmware, Qualcomm Wcd9370 Firmware, Qualcomm Wcd9380 Firmware, Qualcomm Wcn3660b Firmware, Qualcomm Wcn3680b Firmware, Qualcomm Wcn3950 Firmware, Qualcomm Wcn3980 Firmware, Qualcomm Wcn3988 Firmware, Qualcomm Wsa8810 Firmware, Qualcomm Wsa8815 Firmware, Qualcomm Wsa8830 Firmware, Qualcomm Wsa8835 Firmware are affected by CVE-2023-28576.

3

What is the severity of CVE-2023-28576?

CVE-2023-28576 has a severity score of 7, which is considered high.

4

How does CVE-2023-28576 affect user mode and kernel code?

CVE-2023-28576 allows user mode to race and modify the packet header in kernel code, leading to invalid checks.

5

Is there a fix available for CVE-2023-28576?

Please refer to the official advisory from Qualcomm for information on available fixes for CVE-2023-28576.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203