CVE-2021-39806: In closef of label_backends_android.c, there is a possible way to corrupt memory due to a double free. This could lead to local escalation of privilege during…

PriorityP339high7.8CVSS 3.1

AVLACLPRLUINSUCHIHAH

EPSS

0.10%

1.2th percentile

In closef of label_backends_android.c, there is a possible way to corrupt memory due to a double free. This could lead to local escalation of privilege during startup of servicemanager, if an attacker can trigger an initialization failure, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-215387420

Affected

4 ranges

Vendor	Product	Version range	Fixed in
google	android	—	—
google	android	—	—
platform	external_selinux	>= 12L-next:0 < 12L-next:2022-06-01	12L-next:2022-06-01
platform	external_selinux	>= 12L:0 < 12L:2022-06-01	12L:2022-06-01

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.