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Ubuntu Linux CVE-2020-5967

MEDIUM
Race Condition (CWE-362)
2020-06-25 psirt@nvidia.com
4.7
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V15 - Secure Coding and Architecture Concurrency control, locking
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 4.7 (MEDIUM). Attack characteristics: local attack vector, high complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAI

NVIDIA Linux GPU Display Driver, all versions, contains a vulnerability in the UVM driver, in which a race condition may lead to a denial of service. Rated medium severity (CVSS 4.7). No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-362. NVIDIA Linux GPU Display Driver, all versions, contains a vulnerability in the UVM driver, in which a race condition may lead to a denial of service. Affected products include: Nvidia Quadro Firmware, Nvidia Tesla Firmware, Nvidia Geforce Firmware, Nvidia Nvs Firmware, Canonical Ubuntu Linux.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.7 MEDIUM
AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

NVIDIA Linux GPU Display Driver, all versions, contains a vulnerability in the UVM driver, in which a race condition may lead to a denial of service.

Threat Intelligence Overview

EPSS Score
0.3%
Top 81% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

24
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +24
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Race conditions occur when multiple concurrent requests exploit the brief time gap between checking a condition and acting upon it (TOCTOU - Time of Check, Time of Use).

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:nvidia:quadro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:quadro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:quadro_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:tesla_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:tesla_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:tesla_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:geforce_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:geforce_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:geforce_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:nvs_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:nvs_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:nvidia:nvs_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
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