Use After FreeWeakness · CWE-416

CVE-2024-47899

HIGH · 7.8 CVSS v3.1 Published 2025-01-31
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Software installed and run as a non-privileged user may conduct improper GPU system calls to trigger use-after-free kernel exceptions.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

Non-privileged user applications can make improper GPU system calls that trigger use-after-free conditions in kernel code, causing kernel exceptions. This is a local privilege escalation and potential denial-of-service vulnerability in GPU driver or related kernel components.

MitigationApply vendor patches for affected GPU drivers and software as soon as available. Until patched, monitor systems for kernel exceptions related to GPU operations and consider restricting untrusted application access to GPU resources.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed GPU driver and version
    Run 'lspci | grep -i vga' or 'lspci | grep -i gpu' to list GPU hardware, then check the driver in use via 'ls -la /sys/class/drm/card*/device/driver' or 'modinfo <driver_name>'
    Affected if The driver version matches an unpatched version known to contain this vulnerability (compare against vendor security advisories)
  2. Check kernel logs for GPU-related exceptions
    Run 'dmesg | grep -iE "(gpu|nvidia|amd|intel|i915|amdgpu|nouveau)" | tail -50' or review /var/log/syslog for use-after-free, NULL pointer dereference, or kernel panic messages related to GPU operations
    Affected if Recent kernel exceptions mention GPU driver code with use-after-free conditions or memory corruption errors
  3. Verify GPU device permissions
    Run 'ls -la /dev/dri/*' or 'ls -la /dev/nvidia*' to check device file ownership and permissions
    Affected if GPU device files are readable/writable by non-privileged users without explicit authorization (world-readable or belonging to a group that untrusted users can join)
  4. Check for untrusted user access to GPU resources
    Review which users/groups have access to GPU devices via 'getent group video' 'getent group render' and check /etc/security/limits.conf for any GPU-related resource limits applied to unprivileged accounts
    Affected if Untrusted or non-privileged user accounts have direct access to GPU device files or are members of video/render groups containing GPU devices
  5. Review system for recent privilege escalation indicators
    Check audit logs via 'ausearch -k gpu' or review /var/log/audit/audit.log for suspicious GPU-related system calls from unprivileged processes, and check 'ps aux' for unexpected processes with elevated privileges that may have been obtained via GPU driver exploitation
    Affected if Audit logs show GPU system calls from unprivileged processes leading to privilege changes, or unexpected processes hold elevated privileges

A system is likely affected if it runs an unpatched GPU driver version and allows non-privileged users direct access to GPU device files, especially if kernel logs show GPU-related use-after-free exceptions.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor patches for affected GPU drivers and software as soon as available. Until patched, monitor systems for kernel exceptions related to GPU operations and consider restricting untrusted application access to GPU resources.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-47899 in production — separate from our analysis above.

No notes yet

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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