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416baaa9-dc9f-4396-8d5f-8c081fb06d67CVE-2020-36777

HistoryFeb 27, 2024 - 7:04 p.m.

CVE-2020-36777

2024-02-2719:04:05

CWE-401

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

web.nvd.nist.gov

563

linux

kernel

vulnerability

cve-2020-36777

media

dvbdev

memory leak

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.2 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

JSON

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.”

Affected configurations

Vulners

NVD

Node

linuxlinux_kernelRange4.5–4.9.269

linuxlinux_kernelRange4.10.0–4.14.233

linuxlinux_kernelRange4.15.0–4.19.191

linuxlinux_kernelRange4.20.0–5.4.118

linuxlinux_kernelRange5.5.0–5.10.36

linuxlinux_kernelRange5.11.0–5.11.20

linuxlinux_kernelRange5.12.0–5.12.3

linuxlinux_kernelRange5.13.0≥

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/media/dvb-core/dvbdev.c"
    ],
    "versions": [
      {
        "version": "0230d60e4661",
        "lessThan": "06854b943e05",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0230d60e4661",
        "lessThan": "32168ca1f123",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0230d60e4661",
        "lessThan": "cd89f79be5d5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0230d60e4661",
        "lessThan": "9185b3b1c143",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0230d60e4661",
        "lessThan": "43263fd43083",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0230d60e4661",
        "lessThan": "9ad15e214fcd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0230d60e4661",
        "lessThan": "cede24d13be6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0230d60e4661",
        "lessThan": "bf9a40ae8d72",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/media/dvb-core/dvbdev.c"
    ],
    "versions": [
      {
        "version": "4.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.5",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.9.269",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.233",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.191",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.118",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.36",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.11.20",
        "lessThanOrEqual": "5.11.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.12.3",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]