What is CVE-2022-49258?

CVE-2022-49258 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 4.17 onward and patched in 5.10.110, 5.15.33, 5.16.19 and others. CVE-2022-49258 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49258?

CVE-2022-49258 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-2022-49258?

Yes, CVE-2022-49258 has been patched. Fixed versions include 5.10.110, 5.15.33, 5.16.19 and others. If you are running Linux kernel 4.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49258 actively exploited?

CVE-2022-49258 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2022-49258

High

In the Linux kernel, the following vulnerability has been resolved: crypto: ccree - Fix use after free in cc_cipher_exit() kfree_sensitive(ctx_p->user.key) will free the ctx_p->user.key. But ctx_p->user.key is still used in the next line, which will lead to a use after free. We can call kfree_sensitive() after dev_dbg() to avoid the uaf.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-03-25

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-416

CVE-2022-49258 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.17 and later are affected. Fixed in 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18 and their respective stable series.

Affected from

≥ 4.17

Fixed in

✓ 5.10.110 5.10.x ✓ 5.15.33 5.15.x ✓ 5.16.19 5.16.x ✓ 5.17.2 5.17.x ✓ 5.18

References

5 total

Kernel Git
https://git.kernel.org/stable/c/25c358efee5153dfd240d4e0d3169d5bebe9cacd

Patch
Kernel Git
https://git.kernel.org/stable/c/335bf1fc74f775a8255257aa3e33763f2257b676

Patch
Kernel Git
https://git.kernel.org/stable/c/3d950c34074ed74d2713c3856ba01264523289e6

Patch
Kernel Git
https://git.kernel.org/stable/c/c93017c8d5ebf55a4e453ac7c84cc84cf92ab570

Patch
Kernel Git
https://git.kernel.org/stable/c/cffb5382bd8d3cf21b874ab5b84bf7618932286b

Patch

Details

CVE ID CVE-2022-49258

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-03-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49258?

CVE-2022-49258 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 4.17 onward and has been patched in 5.10.110, 5.15.33, 5.16.19 and others. CVE-2022-49258 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49258?

CVE-2022-49258 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-2022-49258?

Yes. CVE-2022-49258 has been patched. Fixed versions include 5.10.110, 5.15.33, 5.16.19 and others. If you are running Linux kernel 4.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49258 actively exploited?

No. CVE-2022-49258 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.