Détail du CWE-1422

CWE-1422

Exposure of Sensitive Information caused by Incorrect Data Forwarding during Transient Execution
Incomplete
2024-02-29
00h00 +00:00
2025-12-11
00h00 +00:00
CWE Mitre.org
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Nom: Exposure of Sensitive Information caused by Incorrect Data Forwarding during Transient Execution

A processor event or prediction may allow incorrect or stale data to be forwarded to transient operations, potentially exposing data over a covert channel.

Informations générales

Modes d'introduction

Architecture and Design

Plateformes applicables

Langue

Class: Not Language-Specific (Undetermined)

Systèmes d’exploitation

Class: Not OS-Specific (Undetermined)

Architectures

Class: Not Architecture-Specific (Undetermined)

Technologies

Class: Not Technology-Specific (Undetermined)

Conséquences courantes

Portée Impact Probabilité
ConfidentialityRead MemoryMedium

Exemples observés

Références Description

CVE-2020-0551

A fault, microcode assist, or abort may allow transient load operations to forward malicious stale data to dependent operations executed by a victim, causing the victim to unintentionally access and potentially expose its own data over a covert channel.

CVE-2020-8698

A fast store forwarding predictor may allow store operations to forward incorrect data to transient load operations, potentially exposing data over a covert channel.

Mesures d’atténuation potentielles

Phases : Architecture and Design
Phases : Requirements
Phases : Requirements
Phases : Requirements
Phases : Build and Compilation
Phases : Build and Compilation
Phases : Build and Compilation
Phases : Build and Compilation
Phases : Build and Compilation
Phases : Documentation

Méthodes de détection

Automated Static Analysis

Efficacité : Moderate

Manual Analysis

Efficacité : Moderate

Automated Analysis

Efficacité : High

Notes de cartographie des vulnérabilités

Justification : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities
Commentaire : Use only when the weakness arises from forwarding of incorrect/stale data, and the data is not architecturally restricted (that is, the forwarded data is accessible within the current processor context).

Références

REF-1389

You Cannot Always Win the Race: Analyzing the LFENCE/JMP Mitigation for Branch Target Injection
Alyssa Milburn, Ke Sun, Henrique Kawakami.
https://arxiv.org/abs/2203.04277

REF-1390

Speculation
The kernel development community.
https://docs.kernel.org/6.6/staging/speculation.html

REF-1391

LVI : Hijacking Transient Execution through Microarchitectural Load Value Injection
Jo Van Bulck, Daniel Moghimi, Michael Schwarz, Moritz Lipp, Marina Minkin, Daniel Genkin, Yuval Yarom, Berk Sunar, Daniel Gruss, Frank Piessens.
https://lviattack.eu/lvi.pdf

REF-1392

Fast Store Forwarding Predictor
Intel Corporation.
https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/fast-store-forwarding-predictor.html

REF-1393

Security Analysis Of AMD Predictive Store Forwarding
AMD.
https://www.amd.com/system/files/documents/security-analysis-predictive-store-forwarding.pdf

Soumission

Nom Organisation Date Date de publication Version
Scott D. Constable Intel Corporation 2023-09-19 +00:00 2024-02-29 +00:00 4.14

Modifications

Nom Organisation Date Commentaire
CWE Content Team MITRE 2025-12-11 +00:00 updated Weakness_Ordinalities
Les informations affichées sur CVE Find proviennent de plusieurs sources de référence rigoureusement sélectionnées. Les données CVE sont fournies par MITRE Corporation et la National Vulnerability Database (NVD). Le catalogue des vulnérabilités activement exploitées (KEV) provient de la Cybersecurity and Infrastructure Security Agency (CISA), tandis que les scores EPSS sont issus de FIRST.org. Enfin, les données relatives aux faiblesses logicielles (CWE) et aux schémas d'attaque courants (CAPEC) sont maintenues par MITRE Corporation, et les informations sur les configurations logicielles et matérielles (CPE) proviennent du NVD.