What is CVE-2024-36477?

CVE-2024-36477 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Read flaw (CWE-125), affecting Linux kernel versions from 6.6 onward and patched in 6.6.33, 6.9.4 and 6.10. CVE-2024-36477 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-36477?

CVE-2024-36477 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-2024-36477?

Yes, CVE-2024-36477 has been patched. Fixed versions include 6.6.33, 6.9.4 and 6.10. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-36477 actively exploited?

CVE-2024-36477 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-2024-36477

High

In the Linux kernel, the following vulnerability has been resolved: tpm_tis_spi: Account for SPI header when allocating TPM SPI xfer buffer The TPM SPI transfer mechanism uses MAX_SPI_FRAMESIZE for computing the maximum transfer length and the size of the transfer buffer. As such, it does not account for the 4 bytes of header that prepends the SPI data frame. This can result in out-of-bounds accesses and was confirmed with KASAN. Introduce SPI_HDRSIZE to account for the header and use to allocate the transfer buffer.

Package Linux Kernel

Published 2024-06-21

Last modified 2025-05-23

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-125

CVE-2024-36477 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 6.6 and later are affected. Fixed in 6.6.33, 6.9.4, 6.10 and their respective stable series.

Affected from

≥ 6.6

Fixed in

✓ 6.6.33 6.6.x ✓ 6.9.4 6.9.x ✓ 6.10

References

3 total

Kernel Git
https://git.kernel.org/stable/c/1547183852dcdfcc25878db7dd3620509217b0cd

Mailing List Patch
Kernel Git
https://git.kernel.org/stable/c/195aba96b854dd664768f382cd1db375d8181f88

Mailing List Patch
Kernel Git
https://git.kernel.org/stable/c/de13c56f99477b56980c7e00b09c776d16b7563d

Mailing List Patch

Details

CVE ID CVE-2024-36477

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-06-21

Modified 2025-05-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-36477?

CVE-2024-36477 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 6.6 onward and has been patched in 6.6.33, 6.9.4 and 6.10. CVE-2024-36477 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-36477?

CVE-2024-36477 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-2024-36477?

Yes. CVE-2024-36477 has been patched. Fixed versions include 6.6.33, 6.9.4 and 6.10. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-36477 actively exploited?

No. CVE-2024-36477 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.