CVE-2023-43521 Use After Free in HLOS
A use-after-free vulnerability in Qualcomm Snapdragon HLOS allows attackers to cause memory corruption and potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-43521?
CVE-2023-43521 is a medium-severity use after free vulnerability in Qualcomm Ar8035 Firmware, published on 6 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Memory corruption when multiple listeners are being registered with the same file descriptor.
Weakness: CWE-416
Which versions are affected by CVE-2023-43521?
It affects 77 products.
Products include Qualcomm Ar8035 Firmware, Qualcomm C-V2x 9150 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware, Qualcomm Fastconnect 7800 Firmware, Qualcomm Qam8255p Firmware and 71 more.
How do I fix CVE-2023-43521?
No fix has been published for CVE-2023-43521 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-43521 being exploited?
There is no known exploitation of CVE-2023-43521 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Ar8035 Firmware
- CVE-2023-33106 Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset
- CVE-2024-45569 Improper Validation of Array Index in WLAN Host Communication
- CVE-2024-21473 Improper Input Validation in WIN SON
- CVE-2023-28582 Buffer Copy Without Checking Size of Input in Data Modem
- CVE-2023-43552 Use After Free in WLAN Host Communication
Sources
Also known as GHSA-qh5v-7qx3-m7xx.