What is CVE-2024-43843?

CVE-2024-43843 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.8 onward and patched in 6.10.3 and 6.11. CVE-2024-43843 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-43843?

CVE-2024-43843 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-2024-43843?

Yes, CVE-2024-43843 has been patched. Fixed versions include 6.10.3 and 6.11. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-43843 actively exploited?

CVE-2024-43843 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-43843

High

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix out-of-bounds issue when preparing trampoline image We get the size of the trampoline image during the dry run phase and allocate memory based on that size. The allocated image will then be populated with instructions during the real patch phase. But after commit 26ef208c209a ("bpf: Use arch_bpf_trampoline_size"), the `im` argument is inconsistent in the dry run and real patch phase. This may cause emit_imm in RV64 to generate a different number of instructions when generating the 'im' address, potentially causing out-of-bounds issues. Let's emit the maximum number of instructions for the "im" address during dry run to fix this problem.

Package Linux Kernel

Published 2024-08-17

Last modified 2024-10-29

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-131

CVE-2024-43843 is classified as CWE-131

See CWE-131 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 6.8 and later are affected. Fixed in 6.10.3, 6.11 and their respective stable series.

Affected from

≥ 6.8

Fixed in

✓ 6.10.3 6.10.x ✓ 6.11

References

2 total

Kernel Git
https://git.kernel.org/stable/c/3e6a1b1b179abb643ec3560c02bc3082bc92285f

Patch
Kernel Git
https://git.kernel.org/stable/c/9f1e16fb1fc9826001c69e0551d51fbbcd2d74e9

Patch

Details

CVE ID CVE-2024-43843

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2024-08-17

Modified 2024-10-29

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-43843?

CVE-2024-43843 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.8 onward and has been patched in 6.10.3 and 6.11. CVE-2024-43843 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-43843?

CVE-2024-43843 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-2024-43843?

Yes. CVE-2024-43843 has been patched. Fixed versions include 6.10.3 and 6.11. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-43843 actively exploited?

No. CVE-2024-43843 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.