CVE-2020-3685 Use after free in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

High 7.5 Published Updated

A use-after-free vulnerability in Qualcomm Snapdragon firmware allows attackers to cause memory corruption and denial of service.

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-2020-3685?

CVE-2020-3685 is a high-severity use after free vulnerability in Qualcomm, Inc. Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking, published on 21 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Pointer variable which is freed is not cleared can result in memory corruption and leads to denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Weakness: CWE-415

Which versions are affected by CVE-2020-3685?

It affects 506 products.

Products include Qualcomm Apq8009, Qualcomm Apq8009w, Qualcomm Apq8017, Qualcomm Apq8030, Qualcomm Apq8037, Qualcomm Apq8052 and 500 more.

How do I fix CVE-2020-3685?

No fix has been published for CVE-2020-3685 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-2020-3685 being exploited?

There is no known exploitation of CVE-2020-3685 in the wild and no public exploit code.

Sources

Also known as GHSA-p3rh-pfh4-2cvw.

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