VulnerabilityModified
CVE-2021-39801
In ion_ioctl of ion-ioctl.c, there is a possible use after free due to improper locking.
HIGH 7.8EPSS 0.12%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In ion_ioctl of ion-ioctl.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-209791720References: Upstream kernel
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416, CWE-667
- Affected
- google/android
- Source
- security@android.com
References
- https://source.android.com/security/bulletin/2022-04-01Patch, Vendor Advisory
- https://source.android.com/security/bulletin/2022-04-01Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.