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Full vulnerability report · 2024
CVE-2023-4969High confidence

GPU kernel implementations susceptible to memory leak

Khronos Group · OpenCL

6.5MediumCVSS 3.1
Recommended action
Within 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Mitigation available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-firmwareUnder evaluationCanonical reports that the package might be affected and still needs evaluation or fixing.Not published in this feedCanonical record ↗Source updated 8 Sept 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-54805

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Mitigation available
01

What, why and how

A GPU kernel can read sensitive data from another GPU kernel (even from another user or app) through an optimized GPU memory region called _local memory_ on various architectures.

What

A GPU kernel can read sensitive data from another GPU kernel (even from another user or app) through an optimized GPU memory region called _local memory_ on various architectures.

Why

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A GPU kernel can read sensitive data from another GPU kernel (even from another user or app) through an optimized GPU memory region called _local memory_ on various architectures.

Why

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
local access → Improper Restriction of Operations within the Bounds of a Memory Buffer → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-119

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer. The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-119Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2024-0111GPUs verschiedener Hersteller: Schwachstelle ermöglicht Offenlegung von Informationen

Ein lokaler Angreifer kann eine Schwachstelle in verschiedenen GPUs ausnutzen, um Informationen offenzulegen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

d?id=CVE-2023-44487 Référence CVE CVE-2023-45803 https://www.cve.org/CVERecord?id=CVE-2023-45803 Référence CVE CVE-2023-45896 https://www.cve.org/CVERecord?id=CVE-2023-45896 Référence CVE CVE-2023-45927 https://www.cve.org/CVERecord?id=CVE-2023-45927 Référence CVE CVE-2023-45929 https://www.cve.org/CVERecord?id=CVE-2023-45929 Référence CVE CVE-2023-46316 https://www.cve.org/CVERecord?id=CVE-2023-46316 Référence CVE CVE-2023-46809 https://www.cve.org/CVERecord?id=CVE-2023-46809 Référence CVE CVE-2023-47210 https://www.cve.org/CVERecord?id=CVE-2023-47210 Référence CVE CVE-2023-49083 https://www.cve.org/CVERecord?id=CVE-2023-49083 Référence CVE CVE-2023-4969 https://www.cve.org/CVERecord?id=CVE-2023-4969 Référence CVE CVE-2023-50387 https://www.cve.org/CVERecord?id=CVE-2023-50387 Référence CVE CVE-2023-50495 https://www.cve.org/CVERecord?id=CVE-2023-50495 Référence CVE CVE-2023-50782 https://www.cve.org/CVERecord?id=CVE-2023-50782 Référence CVE CVE-2023-50868 https://www.cve.org/CVERecord?id=CVE-2023-50868 Référence CVE CVE-2023-52452 https://www.cve.org/CVERecord?id=CVE-2023-52452 Référence CVE CVE-2023-52481 https://www.cve.org/CVERecord?id=CVE-2023-52481 Référence CVE CVE-2023-52485 https://www.cve.org/CVERecord?id=CVE-2023-52485 Référence CVE CVE-2023-52508 https://www.cve.org/CVERecord?id=C

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

d?id=CVE-2023-44487 Référence CVE CVE-2023-45803 https://www.cve.org/CVERecord?id=CVE-2023-45803 Référence CVE CVE-2023-45896 https://www.cve.org/CVERecord?id=CVE-2023-45896 Référence CVE CVE-2023-45927 https://www.cve.org/CVERecord?id=CVE-2023-45927 Référence CVE CVE-2023-45929 https://www.cve.org/CVERecord?id=CVE-2023-45929 Référence CVE CVE-2023-46316 https://www.cve.org/CVERecord?id=CVE-2023-46316 Référence CVE CVE-2023-46809 https://www.cve.org/CVERecord?id=CVE-2023-46809 Référence CVE CVE-2023-47210 https://www.cve.org/CVERecord?id=CVE-2023-47210 Référence CVE CVE-2023-49083 https://www.cve.org/CVERecord?id=CVE-2023-49083 Référence CVE CVE-2023-4969 https://www.cve.org/CVERecord?id=CVE-2023-4969 Référence CVE CVE-2023-50387 https://www.cve.org/CVERecord?id=CVE-2023-50387 Référence CVE CVE-2023-50495 https://www.cve.org/CVERecord?id=CVE-2023-50495 Référence CVE CVE-2023-50782 https://www.cve.org/CVERecord?id=CVE-2023-50782 Référence CVE CVE-2023-50868 https://www.cve.org/CVERecord?id=CVE-2023-50868 Référence CVE CVE-2023-52452 https://www.cve.org/CVERecord?id=CVE-2023-52452 Référence CVE CVE-2023-52481 https://www.cve.org/CVERecord?id=CVE-2023-52481 Référence CVE CVE-2023-52485 https://www.cve.org/CVERecord?id=CVE-2023-52485 Référence CVE CVE-2023-52508 https://www.cve.org/CVERecord?id=C

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Mitigation available
Affected
3.0.11 ≤ 3.0.11; 1.3.224 ≤ 1.3.224
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
Apply the mitigation in the linked authoritative guidance while planning the vendor's permanent fix.
Workaround
A mitigation or workaround reference is available from the source linked below; validate it against the affected product and version.
04

Evidence and provenance

Published 16 Jan 2024 · Last source change 20 Jun 2025, 17:10 UTC · CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-54805
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-4969 · cve.blacktree.nl