What is CVE-2020-36777?

CVE-2020-36777 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 4.5 onward and patched in 4.9.269, 4.14.233, 4.19.191 and others. CVE-2020-36777 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2020-36777?

CVE-2020-36777 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-2020-36777?

Yes, CVE-2020-36777 has been patched. Fixed versions include 4.9.269, 4.14.233, 4.19.191 and others. If you are running Linux kernel 4.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2020-36777 actively exploited?

CVE-2020-36777 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-2020-36777

Medium

In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: Fix memory leak in dvb_media_device_free() dvb_media_device_free() is leaking memory. Free `dvbdev->adapter->conn` before setting it to NULL, as documented in include/media/media-device.h: "The media_entity instance itself must be freed explicitly by the driver if required."

Package Linux Kernel

Published 2024-02-27

Last modified 2024-11-21

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-2020-36777 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 4.5 and later are affected. Fixed in 4.9.269, 4.14.233, 4.19.191, 5.4.118, 5.10.36, 5.11.20, 5.12.3, 5.13 and their respective stable series.

Affected from

≥ 4.5

Fixed in

✓ 4.9.269 4.9.x ✓ 4.14.233 4.14.x ✓ 4.19.191 4.19.x ✓ 5.4.118 5.4.x ✓ 5.10.36 5.10.x ✓ 5.11.20 5.11.x ✓ 5.12.3 5.12.x ✓ 5.13

References

8 total

Kernel Git
https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275

Patch
Kernel Git
https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f

Patch
Kernel Git
https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749

Patch
Kernel Git
https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b

Patch
Kernel Git
https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2020-36777

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-27

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2020-36777?

CVE-2020-36777 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 4.5 onward and has been patched in 4.9.269, 4.14.233, 4.19.191 and others. CVE-2020-36777 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2020-36777?

CVE-2020-36777 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-2020-36777?

Yes. CVE-2020-36777 has been patched. Fixed versions include 4.9.269, 4.14.233, 4.19.191 and others. If you are running Linux kernel 4.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2020-36777 actively exploited?

No. CVE-2020-36777 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.