CVE-2017-18302 Race condition in Snapdragon Automobile, Snapdragon Mobile

Medium 4.7 Published 20 Sep 2018 Updated 5 Aug 2024

A race condition in Qualcomm Snapdragon SoCs allows arbitrary writes to Trusted Zone kernel memory, enabling code execution and privilege escalation.

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-2017-18302?

CVE-2017-18302 is a medium-severity vulnerability in Qualcomm Msm8996au Firmware, published on 20 Sep 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In Snapdragon (Automobile ,Mobile) in version MSM8996AU, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 650/52, SD 820, SD 820A, SD 835, SDA660, SDM429, SDM439, SDM630, SDM632, SDM636, SDM660, Snapdragon_High_Med_2016, a crafted HLOS client can modify the structure in memory passed to a QSEE application between the time of check and the time of use, resulting in arbitrary writes to TZ kernel memory regions.

Weakness: CWE-362

Which versions are affected by CVE-2017-18302?

It affects 19 products.

Products include Qualcomm Msm8996au Firmware, Qualcomm Sd425 Firmware, Qualcomm Sd427 Firmware, Qualcomm Sd430 Firmware, Qualcomm Sd435 Firmware, Qualcomm Sd450 Firmware and 13 more.

How do I fix CVE-2017-18302?

No fix has been published for CVE-2017-18302 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-18302 being exploited?

There is no known exploitation of CVE-2017-18302 in the wild and no public exploit code.

All Qualcomm Msm8996au Firmware vulnerabilities

Sources

Also known as GHSA-4mmr-2wxr-3cr2.