CVE-2020-36777

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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."

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link 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
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

10 Apr 2024, 19:32

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: medios: dvbdev: corrige la pérdida de memoria en dvb_media_device_free() dvb_media_device_free() está perdiendo memoria. Libere `dvbdev->adapter->conn` antes de configurarlo en NULL, como se documenta en include/media/media-device.h: "La instancia media_entity debe ser liberada explícitamente por el controlador si es necesario".
CWE CWE-401
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275 - () https://git.kernel.org/stable/c/06854b943e0571ccbd7ad0a529babed1a98ff275 - Patch
References () https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f - () https://git.kernel.org/stable/c/32168ca1f123316848fffb85d059860adf3c409f - Patch
References () https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749 - () https://git.kernel.org/stable/c/43263fd43083e412311fa764cd04a727b0c6a749 - Patch
References () https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b - () https://git.kernel.org/stable/c/9185b3b1c143b8da409c19ac5a785aa18d67a81b - Patch
References () https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066 - () https://git.kernel.org/stable/c/9ad15e214fcd73694ea51967d86055f47b802066 - Patch
References () https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf - () https://git.kernel.org/stable/c/bf9a40ae8d722f281a2721779595d6df1c33a0bf - Patch
References () https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98 - () https://git.kernel.org/stable/c/cd89f79be5d553c78202f686e8e4caa5fbe94e98 - Patch
References () https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82 - () https://git.kernel.org/stable/c/cede24d13be6c2a62be6d7ceea63c2719b0cfa82 - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

27 Feb 2024, 19:04

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-27 19:04

Updated : 2024-04-10 19:32

NVD link : CVE-2020-36777

Mitre link : CVE-2020-36777

CVE.ORG link : CVE-2020-36777

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime