1. Home
  2. Vulnerabilities
  3. CVE-2020-36777
5.5
MEDIUM CVSS 3.1
CVE-2020-36777
media: dvbdev: Fix memory leak in dvb_media_device_free()
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."

INFO

Published Date :

Feb. 27, 2024, 7:04 p.m.

Last Modified :

Nov. 21, 2024, 5:30 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2020-36777 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
This vulnerability involves a memory leak; updating the kernel will resolve it.
  • Update the Linux kernel packages to a patched version.
  • Reboot the system to apply the kernel update.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-36777.

URL Resource
https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275 Patch
https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f Patch
https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749 Patch
https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b Patch
https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066 Patch
https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf Patch
https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98 Patch
https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82 Patch
https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275 Patch
https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f Patch
https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749 Patch
https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b Patch
https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066 Patch
https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf Patch
https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98 Patch
https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-36777 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-36777 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-36777 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2020-36777 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275
    Added Reference https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f
    Added Reference https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749
    Added Reference https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b
    Added Reference https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066
    Added Reference https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf
    Added Reference https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98
    Added Reference https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Apr. 10, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275 No Types Assigned https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275 Patch
    Changed Reference Type https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f No Types Assigned https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f Patch
    Changed Reference Type https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749 No Types Assigned https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749 Patch
    Changed Reference Type https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b No Types Assigned https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b Patch
    Changed Reference Type https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066 No Types Assigned https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066 Patch
    Changed Reference Type https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf No Types Assigned https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf Patch
    Changed Reference Type https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98 No Types Assigned https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98 Patch
    Changed Reference Type https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82 No Types Assigned https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82 Patch
    Added CWE NIST CWE-401
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5.0 up to (excluding) 4.9.269 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10.0 up to (excluding) 4.14.233 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.19.191 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20.0 up to (excluding) 5.4.118 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5.0 up to (excluding) 5.10.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11.0 up to (excluding) 5.11.20 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.12.0 up to (excluding) 5.12.3
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Feb. 27, 2024

    Action Type Old Value New Value
    Added 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."
    Added Reference Linux https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact