by Kastro
Paper/Archive/CVE-2021-0945

CVE-2021-0945

google_android — In _PMRCreate of the PowerVR kernel driver, a missing bounds check means it is possible to overwrite heap memory via PhysmemNewRamBackedPMR.

EPSS 0.3%CVSS 9.8
critical.is priorityof 100
34
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 24.5.245 × 204.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

In _PMRCreate of the PowerVR kernel driver, a missing bounds check means it is possible to overwrite heap memory via PhysmemNewRamBackedPMR. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected

ProductAffectedFixed inSource
AndroidAndroid SoC–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refsource.android.com/security/bulletin/2023-06-01