What is CVE-2022-49020?

CVE-2022-49020 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 2.6.33 onward and patched in 4.9.335, 4.14.301, 4.19.268 and others. CVE-2022-49020 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49020?

CVE-2022-49020 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-2022-49020?

Yes, CVE-2022-49020 has been patched. Fixed versions include 4.9.335, 4.14.301, 4.19.268 and others. If you are running Linux kernel 2.6.33 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49020 actively exploited?

CVE-2022-49020 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2022-49020

Medium

In the Linux kernel, the following vulnerability has been resolved: net/9p: Fix a potential socket leak in p9_socket_open Both p9_fd_create_tcp() and p9_fd_create_unix() will call p9_socket_open(). If the creation of p9_trans_fd fails, p9_fd_create_tcp() and p9_fd_create_unix() will return an error directly instead of releasing the cscoket, which will result in a socket leak. This patch adds sock_release() to fix the leak issue.

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

Weakness type

CWE-401

CVE-2022-49020 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 2.6.33 and later are affected. Fixed in 4.9.335, 4.14.301, 4.19.268, 5.4.226, 5.10.158, 5.15.82, 6.0.12, 6.1 and their respective stable series.

Affected from

≥ 2.6.33

Fixed in

✓ 4.9.335 4.9.x ✓ 4.14.301 4.14.x ✓ 4.19.268 4.19.x ✓ 5.4.226 5.4.x ✓ 5.10.158 5.10.x ✓ 5.15.82 5.15.x ✓ 6.0.12 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-49020 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/0396227f4daf4792a6a8aaa3b7771dc25c4cd443
Patch
Kernel patch commit
https://git.kernel.org/stable/c/2d24d91b9f44620824fc37b766f7cae00ca32748
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8782b32ef867de7981bbe9e86ecb90e92e8780bd
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2022-49020

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-2022-49020?

CVE-2022-49020 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 2.6.33 onward and has been patched in 4.9.335, 4.14.301, 4.19.268 and others. CVE-2022-49020 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49020?

CVE-2022-49020 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-2022-49020?

Yes — CVE-2022-49020 has been patched. Fixed versions include 4.9.335, 4.14.301, 4.19.268 and others. If you are running Linux kernel 2.6.33 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49020 actively exploited?

No — CVE-2022-49020 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →