CVE-2021-30300 Denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables

High 7.5 Published 13 Jan 2022 Updated 3 Aug 2024

Attackers can cause denial of service in Qualcomm Snapdragon devices by exploiting incorrect hex decoding in SIB2 OTA message processing.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-30300?

CVE-2021-30300 is a high-severity denial of service vulnerability in Qualcomm Apq8009w Firmware, published on 13 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Possible denial of service due to incorrectly decoding hex data for the SIB2 OTA message and assigning a garbage value to choice when processing the SRS configuration in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables

Weakness: CWE-704

Which versions are affected by CVE-2021-30300?

It affects 110 products.

Products include Qualcomm Apq8009w Firmware, Qualcomm Apq8017 Firmware, Qualcomm Apq8096au Firmware, Qualcomm Ar8035 Firmware, Qualcomm Csrb31024 Firmware, Qualcomm Fsm10055 Firmware and 104 more.

How do I fix CVE-2021-30300?

No fix has been published for CVE-2021-30300 yet. Limit exposure of the affected software until one is available.

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-2021-30300 being exploited?

There is no known exploitation of CVE-2021-30300 in the wild and no public exploit code.

All Qualcomm Apq8009w Firmware vulnerabilities

Sources

Also known as GHSA-gq7v-v27c-rx72.