CVE-2018-21040 Use after free in n/a
A race condition in the g2d driver causes a use-after-free, potentially allowing attackers to execute arbitrary code or escalate privileges on affected Samsung devices.
- 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-2018-21040?
CVE-2018-21040 is a high-severity use after free vulnerability in Google Android, published on 8 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered on Samsung mobile devices with O(8.x) and P(9.0) (Exynos 9810 chipsets) software. There is a race condition with a resultant use-after-free in the g2d driver. The Samsung ID is SVE-2018-12959 (December 2018).
Which versions are affected by CVE-2018-21040?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2018-21040?
No fix has been published for CVE-2018-21040 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-2018-21040 being exploited?
There is no known exploitation of CVE-2018-21040 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as GHSA-rgv3-4hfm-m6vg.