CVE-2020-9257 Memory corruption in HUAWEI P30 Pro

High 8.8 Published 17 Jul 2020 Updated 4 Aug 2024

A buffer overflow in Huawei P30 Pro allows code execution if a user installs a malicious application, requiring an upgrade to secure the device.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2020-9257?

CVE-2020-9257 is a high-severity memory corruption vulnerability in HUAWEI P30 Pro, published on 17 Jul 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

HUAWEI P30 Pro smartphones with versions earlier than 10.1.0.123(C432E19R2P5patch02), versions earlier than 10.1.0.126(C10E11R5P1), and versions earlier than 10.1.0.160(C00E160R2P8) have a buffer overflow vulnerability. The software access data past the end, or before the beginning, of the intended buffer when handling certain operations of certificate, the attacker should trick the user into installing a malicious application, successful exploit may cause code execution.

Weakness: CWE-120

Which versions are affected by CVE-2020-9257?

It affects 1 product.

Products include Huawei P30 Pro Firmware.

How do I fix CVE-2020-9257?

No fix has been published for CVE-2020-9257 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-2020-9257 being exploited?

There is no known exploitation of CVE-2020-9257 in the wild and no public exploit code.

Sources

Also known as GHSA-c3h3-5867-mxh8.