CVE-2023-20796 Memory corruption in MT2735, MT2737, MT6789, MT6833, MT6835, MT6853, MT6855, MT6873, MT6877, MT6879, MT6880, MT6886, MT6890, MT6893, MT6895, MT6980, MT6983, MT6985, MT6990, MT8168, MT8321, MT8768, MT8781, MT8786

Medium 4.4 Published Updated

A local attacker with system privileges can cause a denial of service via memory corruption in MediaTek chipsets due to an incorrect bounds check.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-20796?

CVE-2023-20796 is a medium-severity memory corruption vulnerability in Google Android, published on 7 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In power, there is a possible memory corruption due to an incorrect bounds check. This could lead to local denial of service with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07929790; Issue ID: ALPS07929790.

Weakness: CWE-787

Which versions are affected by CVE-2023-20796?

It affects 4 products.

Products include Google Android, Linuxfoundation Yocto, Openwrt Openwrt, Rdkcentral Rdk-B.

How do I fix CVE-2023-20796?

No fix has been published for CVE-2023-20796 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-2023-20796 being exploited?

There is no known exploitation of CVE-2023-20796 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-wh9w-4hp2-58w8.

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