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HIGH · 7.0

CVE-2021-31795

The PowerVR GPU kernel driver in pvrsrvkm.ko through 2021-04-24 for the Linux kernel, as used on Alcatel 1S phones, allows attackers to overwrite heap memory via PhysmemNewRamBackedPMR.

Vulnerability Description

The PowerVR GPU kernel driver in pvrsrvkm.ko through 2021-04-24 for the Linux kernel, as used on Alcatel 1S phones, allows attackers to overwrite heap memory via PhysmemNewRamBackedPMR.

CVSS Score

7.0

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Pvrsrvkm.Ko ProjectPvrsrvkm.Ko<= 2021-04-24

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2021-31795?

CVE-2021-31795 is a vulnerability with a CVSS score of 7.0 (HIGH). The PowerVR GPU kernel driver in pvrsrvkm.ko through 2021-04-24 for the Linux kernel, as used on Alcatel 1S phones, allows attackers to overwrite heap memory via PhysmemNewRamBackedPMR.

How severe is CVE-2021-31795?

CVE-2021-31795 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-31795?

Check the references section above for vendor advisories and patch information. Affected products include: Pvrsrvkm.Ko Project Pvrsrvkm.Ko.