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[email protected]CVE-2021-31795

HistoryApr 24, 2021 - 6:15 p.m.

CVE-2021-31795

2021-04-2418:15:07

CWE-787

[email protected]

web.nvd.nist.gov

cve-2021-31795

powervr gpu

pvrsrvkm.ko

linux kernel

alcatel 1s

heap memory

physmemnewrambackedpmr

nvd

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6.6 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.9%

JSON

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.

Affected configurations

NVD

Node

pvrsrvkm.ko_projectpvrsrvkm.koRange≤2021-04-24

CPENameOperatorVersion
pvrsrvkm.ko_project:pvrsrvkm.kopvrsrvkm.ko project pvrsrvkm.kole2021-04-24

CPE	Name	Operator	Version
pvrsrvkm.ko_project:pvrsrvkm.ko	pvrsrvkm.ko project pvrsrvkm.ko	le	2021-04-24

References

mcyoloswagham.github.io/linux/

Social References

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:C/I:C/A:C

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

6.6 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.9%

JSON

Related for CVE-2021-31795

nvd1 prion1 cvelist1