CVE-2021-20292
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-20292
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-20292.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | affected | | |
| sles | affected | | |
| debian | bookworm | fixed | 5.7.17-1 |
| debian | bullseye | fixed | 5.7.17-1 |
| debian | forky | fixed | 5.7.17-1 |
| debian | sid | fixed | 5.7.17-1 |
| debian | trixie | fixed | 5.7.17-1 |
References
Verify integrity in audit chain (admin only). AS-IS.