What is CVE-2024-44996?

CVE-2024-44996 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Uncontrolled Recursion flaw (CWE-674), affecting Linux kernel versions from 6.4 onward and patched in 6.6.48, 6.10.7 and 6.11. CVE-2024-44996 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-44996?

CVE-2024-44996 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-2024-44996?

Yes, CVE-2024-44996 has been patched. Fixed versions include 6.6.48, 6.10.7 and 6.11. If you are running Linux kernel 6.4 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-44996 actively exploited?

CVE-2024-44996 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Uncontrolled Recursion (CWE-674)?

The product does not properly control the amount of recursion which triggers resource consumption. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/674.html

CVE-2024-44996

Medium

In the Linux kernel, the following vulnerability has been resolved: vsock: fix recursive ->recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot->recvmsg has been replaced with vsock_bpf_recvmsg(). Thus the following recursiion could happen: vsock_bpf_recvmsg() -> __vsock_recvmsg() -> vsock_connectible_recvmsg() -> prot->recvmsg() -> vsock_bpf_recvmsg() again We need to fix it by calling the original ->recvmsg() without any BPF sockmap logic in __vsock_recvmsg().

Package Linux Kernel

Published 2024-09-04

Last modified 2024-09-16

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

Weakness type

CWE-674

CVE-2024-44996 is a Uncontrolled Recursion vulnerability

What is Uncontrolled Recursion?

The product does not properly control the amount of recursion which triggers resource consumption. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.4 and later are affected. Fixed in 6.6.48, 6.10.7, 6.11 and their respective stable series.

Affected from

≥ 6.4

Fixed in

✓ 6.6.48 6.6.x ✓ 6.10.7 6.10.x ✓ 6.11

References

The following references provide additional information about CVE-2024-44996 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/69139d2919dd4aa9a553c8245e7c63e82613e3fc
Patch
Kernel patch commit
https://git.kernel.org/stable/c/921f1acf0c3cf6b1260ab57a8a6e8b3d5f3023d5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b4ee8cf1acc5018ed1369150d7bb3e0d0f79e135
Patch

Details

CVE ID CVE-2024-44996

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-09-04

Modified 2024-09-16

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-44996?

CVE-2024-44996 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Uncontrolled Recursion flaw (CWE-674) . It affects Linux kernel versions from 6.4 onward and has been patched in 6.6.48, 6.10.7 and 6.11. CVE-2024-44996 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-44996?

CVE-2024-44996 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-2024-44996?

Yes — CVE-2024-44996 has been patched. Fixed versions include 6.6.48, 6.10.7 and 6.11. If you are running Linux kernel 6.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-44996 actively exploited?

No — CVE-2024-44996 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Uncontrolled Recursion (CWE-674)?

The product does not properly control the amount of recursion which triggers resource consumption. View CWE-674 on MITRE CWE →