CVE-2018-9439

Description

In __unregister_prot_hook and packet_release of af_packet.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory android.com
Affected: Google Android
Published at:
Updated at:

References

Link Tags
https://source.android.com/security/bulletin/pixel/2018-08-01 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-9439?
CVE-2018-9439 has been scored as a medium severity vulnerability.
How to fix CVE-2018-9439?
To fix CVE-2018-9439, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-9439 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-9439 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-9439?
CVE-2018-9439 affects Google Android.
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