What is CVE-2022-48938?

CVE-2022-48938 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Integer Overflow flaw (CWE-190), affecting Linux kernel versions from 4.19.285 onward and patched in 4.19.323, 5.4.285, 5.10.103 and others. CVE-2022-48938 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-48938?

CVE-2022-48938 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-2022-48938?

Yes, CVE-2022-48938 has been patched. Fixed versions include 4.19.323, 5.4.285, 5.10.103 and others. If you are running Linux kernel 4.19.285 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-48938 actively exploited?

CVE-2022-48938 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/190.html

CVE-2022-48938

Medium

In the Linux kernel, the following vulnerability has been resolved: CDC-NCM: avoid overflow in sanity checking A broken device may give an extreme offset like 0xFFF0 and a reasonable length for a fragment. In the sanity check as formulated now, this will create an integer overflow, defeating the sanity check. Both offset and offset + len need to be checked in such a manner that no overflow can occur. And those quantities should be unsigned.

Package Linux Kernel

Published 2024-08-22

Last modified 2024-11-08

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-190

CVE-2022-48938 is a Integer Overflow vulnerability

What is Integer Overflow?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.19.285, 5.4.245, 4.14.317, 5.7 and later are affected. Fixed in 4.19.323, 5.4.285, 5.10.103, 5.15.26, 5.16.12, 5.17 and their respective stable series.

Affected from

≥ 4.19.285 ≥ 5.4.245 ≥ 4.14.317 ≥ 5.7

Fixed in

✓ 4.19.323 4.19.x ✓ 5.4.285 5.4.x ✓ 5.10.103 5.10.x ✓ 5.15.26 5.15.x ✓ 5.16.12 5.16.x ✓ 5.17

References

The following references provide additional information about CVE-2022-48938 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/49909c9f8458cacb5b241106cba65aba5a6d8f4c
Patch
Kernel patch commit
https://git.kernel.org/stable/c/69560efa001397ebb8dc1c3e6a3ce00302bb9f7f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7b737e47b87589031f0d4657f6d7b0b770474925
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2022-48938

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-08-22

Modified 2024-11-08

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-48938?

CVE-2022-48938 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Integer Overflow flaw (CWE-190) . It affects Linux kernel versions from 4.19.285 onward and has been patched in 4.19.323, 5.4.285, 5.10.103 and others. CVE-2022-48938 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-48938?

CVE-2022-48938 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-2022-48938?

Yes — CVE-2022-48938 has been patched. Fixed versions include 4.19.323, 5.4.285, 5.10.103 and others. If you are running Linux kernel 4.19.285 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-48938 actively exploited?

No — CVE-2022-48938 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Integer Overflow (CWE-190)?

The product performs a calculation that can produce an integer overflow, leading to unexpected values. View CWE-190 on MITRE CWE →