What is CVE-2021-47308?

CVE-2021-47308 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10, classified as a Out-of-bounds Read flaw (CWE-125), affecting Linux kernel versions from 4.10 onward and patched in 4.14.241, 4.19.199, 5.4.135 and others. CVE-2021-47308 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47308?

CVE-2021-47308 has a CVSS score of 6.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.

Is there a patch available for CVE-2021-47308?

Yes, CVE-2021-47308 has been patched. Fixed versions include 4.14.241, 4.19.199, 5.4.135 and others. If you are running Linux kernel 4.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47308 actively exploited?

CVE-2021-47308 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-2021-47308

Medium

In the Linux kernel, the following vulnerability has been resolved: scsi: libfc: Fix array index out of bound exception Fix array index out of bound exception in fc_rport_prli_resp().

Package Linux Kernel

Published 2024-05-21

Last modified 2025-04-02

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

6.5

out of 10

Medium

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Vector string

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

Weakness type

CWE-125

CVE-2021-47308 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 4.10 and later are affected. Fixed in 4.14.241, 4.19.199, 5.4.135, 5.10.53, 5.13.5, 5.14 and their respective stable series.

Affected from

≥ 4.10

Fixed in

✓ 4.14.241 4.14.x ✓ 4.19.199 4.19.x ✓ 5.4.135 5.4.x ✓ 5.10.53 5.10.x ✓ 5.13.5 5.13.x ✓ 5.14

References

6 total

Kernel Git
https://git.kernel.org/stable/c/0fe70c15f9435bb3c50954778245d62ee38b0e03

Patch
Kernel Git
https://git.kernel.org/stable/c/44651522941c623e20882b3b443f23f77de1ea8b

Patch
Kernel Git
https://git.kernel.org/stable/c/4921b1618045ffab71b1050bf0014df3313a2289

Patch
Kernel Git
https://git.kernel.org/stable/c/8511293e643a18b248510ae5734e4f360754348c

Patch
Kernel Git
https://git.kernel.org/stable/c/a4a54c54af2516caa9c145015844543cfc84316a

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2021-47308

Severity Medium

CVSS score 6.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-04-02

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47308?

CVE-2021-47308 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 4.10 onward and has been patched in 4.14.241, 4.19.199, 5.4.135 and others. CVE-2021-47308 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47308?

CVE-2021-47308 has a CVSS score of 6.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
Is there a patch available for CVE-2021-47308?

Yes. CVE-2021-47308 has been patched. Fixed versions include 4.14.241, 4.19.199, 5.4.135 and others. If you are running Linux kernel 4.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47308 actively exploited?

No. CVE-2021-47308 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.