CVE-2017-6899 Null dereference in n/a
Attackers can crash Android MSM devices by writing to a debug interface, causing a denial of service via null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-6899?
CVE-2017-6899 is a medium-severity vulnerability in n/a, published on 16 Jun 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The msm_bus_dbg_update_request_write function in drivers/platform/msm/msm_bus/msm_bus_dbg.c in android_kernel_huawei_msm8916 through 2017-06-16 in LineageOS, and possibly other kernels for MSM devices, allows attackers to cause a denial of service (NULL pointer dereference and device crash) via a crafted /sys/kernel/debug/msm-bus-dbg/client-data/update-request write request.
Weakness: CWE-476
Which versions are affected by CVE-2017-6899?
It affects 1 product.
Products include Lineageos Lineageos.
How do I fix CVE-2017-6899?
Apply the vendor's patch.
Is CVE-2017-6899 being exploited?
There is no known exploitation of CVE-2017-6899 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gf68-qxhp-mhcf.