What is CVE-2024-47703?

CVE-2024-47703 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.7 onward and patched in 6.10.13, 6.11.2 and 6.12. CVE-2024-47703 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-47703?

CVE-2024-47703 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-47703?

Yes, CVE-2024-47703 has been patched. Fixed versions include 6.10.13, 6.11.2 and 6.12. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-47703 actively exploited?

CVE-2024-47703 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-47703

Medium

In the Linux kernel, the following vulnerability has been resolved: bpf, lsm: Add check for BPF LSM return value A bpf prog returning a positive number attached to file_alloc_security hook makes kernel panic. This happens because file system can not filter out the positive number returned by the LSM prog using IS_ERR, and misinterprets this positive number as a file pointer. Given that hook file_alloc_security never returned positive number before the introduction of BPF LSM, and other BPF LSM hooks may encounter similar issues, this patch adds LSM return value check in verifier, to ensure no unexpected value is returned.

Package Linux Kernel

Published 2024-10-21

Last modified 2024-10-24

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 5.7 and later are affected. Fixed in 6.10.13, 6.11.2, 6.12 and their respective stable series.

Affected from

≥ 5.7

Fixed in

✓ 6.10.13 6.10.x ✓ 6.11.2 6.11.x ✓ 6.12

References

The following references provide additional information about CVE-2024-47703 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/1050727d83e70449991c29dd1cf29fe936a63da3
Patch
Kernel patch commit
https://git.kernel.org/stable/c/27ca3e20fe80be85a92b10064dfeb56cb2564b1c
Patch
Kernel patch commit
https://git.kernel.org/stable/c/5d99e198be279045e6ecefe220f5c52f8ce9bfd5
Patch

Details

CVE ID CVE-2024-47703

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-10-21

Modified 2024-10-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-47703?

CVE-2024-47703 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.7 onward and has been patched in 6.10.13, 6.11.2 and 6.12. CVE-2024-47703 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-47703?

CVE-2024-47703 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-47703?

Yes — CVE-2024-47703 has been patched. Fixed versions include 6.10.13, 6.11.2 and 6.12. If you are running Linux kernel 5.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-47703 actively exploited?

No — CVE-2024-47703 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.