medium6.7
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 subsy…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 3.3 before 4.9.298 from 4.10 before 4.14.263 from 4.15 before 4.19.140 from 4.20 before 5.4.59 from 5.5 before 5.7.16 from 5.8 before 5.8.2 |
| Fedoraproject | Fedora | Version 33 |
| Redhat | Enterprise Linux | Versions 6.0, 7.0 |
| Debian | Debian Linux | Version 9.0 |