What is CVE-2021-46965?

CVE-2021-46965 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, classified as a Out-of-bounds Read flaw (CWE-125), affecting Linux kernel versions from 5.10 onward and patched in 5.10.36, 5.11.20, 5.12.3 and others. CVE-2021-46965 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-46965?

CVE-2021-46965 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2021-46965?

Yes, CVE-2021-46965 has been patched. Fixed versions include 5.10.36, 5.11.20, 5.12.3 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-46965 actively exploited?

CVE-2021-46965 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/125.html

CVE-2021-46965

High

In the Linux kernel, the following vulnerability has been resolved: mtd: physmap: physmap-bt1-rom: Fix unintentional stack access Cast &data to (char *) in order to avoid unintentionally accessing the stack. Notice that data is of type u32, so any increment to &data will be in the order of 4-byte chunks, and this piece of code is actually intended to be a byte offset. Addresses-Coverity-ID: 1497765 ("Out-of-bounds access")

Package Linux Kernel

Published 2024-02-27

Last modified 2025-01-08

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-125

CVE-2021-46965 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

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

Affected versions

Linux kernel versions 5.10 and later are affected. Fixed in 5.10.36, 5.11.20, 5.12.3, 5.13 and their respective stable series.

Affected from

≥ 5.10

Fixed in

✓ 5.10.36 5.10.x ✓ 5.11.20 5.11.x ✓ 5.12.3 5.12.x ✓ 5.13

References

4 total

Kernel Git
https://git.kernel.org/stable/c/34ec706bf0b7c4ca249a729c1bcb91f706c7a7be

Patch
Kernel Git
https://git.kernel.org/stable/c/4d786870e3262ec098a3b4ed10b895176bc66ecb

Patch
Kernel Git
https://git.kernel.org/stable/c/4e4ebb827bf09311469ffd9d0c14ed40ed9747aa

Patch
Kernel Git
https://git.kernel.org/stable/c/683313993dbe1651c7aa00bb42a041d70e914925

Patch

Details

CVE ID CVE-2021-46965

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2024-02-27

Modified 2025-01-08

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-46965?

CVE-2021-46965 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 5.10 onward and has been patched in 5.10.36, 5.11.20, 5.12.3 and others. CVE-2021-46965 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-46965?

CVE-2021-46965 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2021-46965?

Yes. CVE-2021-46965 has been patched. Fixed versions include 5.10.36, 5.11.20, 5.12.3 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-46965 actively exploited?

No. CVE-2021-46965 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.