CVE-2020-36777: linux kernel — Fix

Description

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."

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.5.0 — 4.9.269
linux	linux_kernel	4.10.0 — 4.14.233
linux	linux_kernel	4.15.0 — 4.19.191
linux	linux_kernel	4.20.0 — 5.4.118
linux	linux_kernel	5.5.0 — 5.10.36
linux	linux_kernel	5.11.0 — 5.11.20
linux	linux_kernel	5.12.0 — 5.12.3

References

Advisories & Patches

Frequently Asked Questions

What is CVE-2020-36777? +

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." It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2020-36777? +

CVE-2020-36777 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2020-36777? +

CVE-2020-36777 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2020-36777? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2020-36777