Vulnerability Monitor

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CVE-2021-20292

There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

Published

2021-05-28T11:15:08.130

Last Modified

2024-11-21T05:46:17.750

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.7 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-416
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.9.298 Yes
Operating System linux linux_kernel < 4.14.263 Yes
Operating System linux linux_kernel < 4.19.140 Yes
Operating System linux linux_kernel < 5.4.59 Yes
Operating System linux linux_kernel < 5.7.16 Yes
Operating System linux linux_kernel < 5.8.2 Yes
Operating System fedoraproject fedora 33 Yes
Operating System redhat enterprise_linux 6.0 Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System debian debian_linux 9.0 Yes
References