CVE-2018-5821 Memory corruption in Android for MSM, Firefox OS for MSM, QRD Android
An out-of-bounds read in the Qualcomm Android kernel allows attackers to read sensitive memory or cause a denial of service via crafted firmware events.
- 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-2018-5821?
CVE-2018-5821 is a high-severity memory corruption vulnerability in Google Android, published on 3 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Qualcomm Android for MSM, Firefox OS for MSM, and QRD Android with all Android releases from CAF using the Linux kernel before security patch level 2018-04-05, in function wma_wow_wakeup_host_event(), wake_info->vdev_id is received from FW and is used directly as array index to access wma->interfaces whose max index should be (max_bssid-1). If wake_info->vdev_id is greater than or equal to max_bssid, an out-of-bounds read occurs.
Weakness: CWE-125
Which versions are affected by CVE-2018-5821?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2018-5821?
No fix has been published for CVE-2018-5821 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-2018-5821 being exploited?
There is no known exploitation of CVE-2018-5821 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as GHSA-r4x7-9g6g-224c.