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CVE-2021-20292

MEDIUM
6.7
CVSS Score
Published: May 28, 2021 at 10:42 AM UTC
Updated: June 17, 2026 at 03:33 AM UTC
5 products affected across 4 vendorsLinux KernelDebian LinuxFedora

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.9%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
9.0
Fedora· Fedora Projectrpm
95%
33
Linux Kernel· Linux
95%
3.3 ≤ v < 4.9.2984.10 ≤ v < 4.14.2634.15 ≤ v < 4.19.1404.20 ≤ v < 5.4.595.5 ≤ v < 5.7.165.8 ≤ v < 5.8.2
Affected range stops below 4.14.263, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.140, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.298, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.59, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.7.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.8.2, so it looks safe — our inference, not a vendor statement
Enterprise Linux· Red Hatrpm
95%
6.07.0
Kernel· Red Hat
60%
5.9

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1939686
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

CVSS

6.7MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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