What is CVE-2022-49643?

CVE-2022-49643 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 5.4 onward and patched in 5.4.207, 5.10.132, 5.15.56 and others. CVE-2022-49643 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49643?

CVE-2022-49643 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-2022-49643?

Yes, CVE-2022-49643 has been patched. Fixed versions include 5.4.207, 5.10.132, 5.15.56 and others. If you are running Linux kernel 5.4 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49643 actively exploited?

CVE-2022-49643 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-2022-49643

Medium

In the Linux kernel, the following vulnerability has been resolved: ima: Fix a potential integer overflow in ima_appraise_measurement When the ima-modsig is enabled, the rc passed to evm_verifyxattr() may be negative, which may cause the integer overflow problem.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-01

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-2022-49643 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 5.4 and later are affected. Fixed in 5.4.207, 5.10.132, 5.15.56, 5.18.13, 5.19 and their respective stable series.

Affected from

≥ 5.4

Fixed in

✓ 5.4.207 5.4.x ✓ 5.10.132 5.10.x ✓ 5.15.56 5.15.x ✓ 5.18.13 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49643 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/388f3df7c3c8b7f2a32b9ae0a9b2f9f6ad3b1b77
Patch
Kernel patch commit
https://git.kernel.org/stable/c/640cea4c2839a821adfbb703b590a5928abe9286
Patch
Kernel patch commit
https://git.kernel.org/stable/c/831e190175f10652be93b08436cc7bf2e62e4bb6
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2022-49643

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49643?

CVE-2022-49643 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 5.4 onward and has been patched in 5.4.207, 5.10.132, 5.15.56 and others. CVE-2022-49643 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49643?

CVE-2022-49643 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-2022-49643?

Yes — CVE-2022-49643 has been patched. Fixed versions include 5.4.207, 5.10.132, 5.15.56 and others. If you are running Linux kernel 5.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49643 actively exploited?

No — CVE-2022-49643 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 →