VulnerabilityAnalyzed

CVE-2018-9439

In __unregister_prot_hook and packet_release of af_packet.c, there is a possible use-after-free due to improper locking.

MEDIUM 6.7EPSS 0.08%

Does this matter?

Lower severity and a low EPSS score (0.08%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.08% probability · 0th percentile
CISA KEV: Not listed
Weakness: CWE-416
Affected: google/android
Source: security@android.com

References

https://source.android.com/security/bulletin/pixel/2018-08-01Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.