CVE-2020-3646 Memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

High 7.8 Published 8 Sep 2020 Updated 4 Aug 2024

A buffer overflow in the video application allows attackers to execute arbitrary code or escalate privileges on affected Qualcomm Snapdragon devices.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-3646?

CVE-2020-3646 is a high-severity memory corruption vulnerability in Qualcomm Msm8909w Firmware, published on 8 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

u'Buffer overflow seen as the destination buffer size is lesser than the source buffer size in video application' in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in Bitra, MSM8909W, QCM2150, QCS405, QCS605, Saipan, SC8180X, SDA845, SDM429W, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130

Weakness: CWE-120

Which versions are affected by CVE-2020-3646?

It affects 16 products.

Products include Qualcomm Bitra Firmware, Qualcomm Msm8909w Firmware, Qualcomm Qcm2150 Firmware, Qualcomm Qcs405 Firmware, Qualcomm Qcs605 Firmware, Qualcomm Saipan Firmware and 10 more.

How do I fix CVE-2020-3646?

No fix has been published for CVE-2020-3646 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-3646 being exploited?

There is no known exploitation of CVE-2020-3646 in the wild and no public exploit code.

All Qualcomm Msm8909w Firmware vulnerabilities

Sources

Also known as GHSA-m69w-8p53-w8cx.