What is CVE-2021-47485?

CVE-2021-47485 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 2.6.35 onward and patched in 4.4.292, 4.9.290, 4.14.255 and others. CVE-2021-47485 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47485?

CVE-2021-47485 has a CVSS score of 7.8 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:H/A:H.

Is there a patch available for CVE-2021-47485?

Yes, CVE-2021-47485 has been patched. Fixed versions include 4.4.292, 4.9.290, 4.14.255 and others. If you are running Linux kernel 2.6.35 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47485 actively exploited?

CVE-2021-47485 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47485

High

In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.

Package Linux Kernel

Published 2024-05-22

Last modified 2025-01-06

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-120

CVE-2021-47485 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 2.6.35 and later are affected. Fixed in 4.4.292, 4.9.290, 4.14.255, 4.19.216, 5.4.157, 5.10.77, 5.14.16, 5.15 and their respective stable series.

Affected from

≥ 2.6.35

Fixed in

✓ 4.4.292 4.4.x ✓ 4.9.290 4.9.x ✓ 4.14.255 4.14.x ✓ 4.19.216 4.19.x ✓ 5.4.157 5.4.x ✓ 5.10.77 5.10.x ✓ 5.14.16 5.14.x ✓ 5.15

References

8 total

Kernel Git
https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952

Patch
Kernel Git
https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724

Patch
Kernel Git
https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad

Patch
Kernel Git
https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d

Patch
Kernel Git
https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2021-47485

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-05-22

Modified 2025-01-06

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47485?

CVE-2021-47485 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 2.6.35 onward and has been patched in 4.4.292, 4.9.290, 4.14.255 and others. CVE-2021-47485 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47485?

CVE-2021-47485 has a CVSS score of 7.8 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:H/A:H.
Is there a patch available for CVE-2021-47485?

Yes. CVE-2021-47485 has been patched. Fixed versions include 4.4.292, 4.9.290, 4.14.255 and others. If you are running Linux kernel 2.6.35 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47485 actively exploited?

No. CVE-2021-47485 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.