What is CVE-2021-31795?

CVE-2021-31795 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10, classified as a Out-of-bounds Write flaw (CWE-787). CVE-2021-31795 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-31795?

CVE-2021-31795 has a CVSS score of 7.0 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2021-31795?

No patch is currently available for CVE-2021-31795. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-31795 actively exploited?

CVE-2021-31795 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/787.html

CVE-2021-31795

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.

Package Linux Kernel

Published 2021-04-24

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.0

out of 10

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-787

CVE-2021-31795 is a Out-of-bounds Write vulnerability

What is Out-of-bounds Write?

The product writes data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2021-31795 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Mcyoloswagham
https://mcyoloswagham.github.io/linux/

Exploit Third Party Advisory

Details

CVE ID CVE-2021-31795

Severity High

CVSS score 7.0 / 10

CVSS version 3.1

Published 2021-04-24

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-31795?

CVE-2021-31795 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 , classified as an Out-of-bounds Write flaw (CWE-787) . CVE-2021-31795 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-31795?

CVE-2021-31795 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2021-31795?

No patch is currently available for CVE-2021-31795. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-31795 actively exploited?

No — CVE-2021-31795 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Out-of-bounds Write (CWE-787)?

The product writes data past the end or before the beginning of the intended buffer. View CWE-787 on MITRE CWE →