CVE-2021-1955 Denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Attackers can cause a denial of service in Qualcomm Snapdragon devices by exploiting improper connection handling when an association is rejected.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-1955?
CVE-2021-1955 is a high-severity denial of service vulnerability in Qualcomm Apq8009 Firmware, published on 13 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Denial of service in SAP case due to improper handling of connections when association is rejected in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Weakness: CWE-617
Which versions are affected by CVE-2021-1955?
It affects 178 products.
Products include Qualcomm Apq8009 Firmware, Qualcomm Apq8009w Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8053 Firmware, Qualcomm Apq8064au Firmware, Qualcomm Apq8096au Firmware and 172 more.
How do I fix CVE-2021-1955?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-1955 being exploited?
There is no known exploitation of CVE-2021-1955 in the wild and no public exploit code.
Other vulnerabilities in Qualcomm Apq8009 Firmware
- CVE-2021-1905 Qualcomm Multiple Chipsets Use-After-Free
- CVE-2020-11261 Qualcomm Multiple Chipsets Improper Input Validation
- CVE-2021-1906 Qualcomm Multiple Chipsets Detection of Error Condition Without Action
- CVE-2022-40510 Buffer copy without checking size of input in Audio.
- CVE-2022-22088 Integer Overflow to Buffer Overflow in Bluetooth HOST
Sources
Also known as 2810235, 2857049, 2857052, A-184561582, ASB-A-184561582, GHSA-2726-mprm-wgq9.