CVE-2020-10766 Vulnerability Details

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CVE-2020-10766 Metadata Quick Info

CVE Published: 15/09/2020 | CVE Updated: 04/08/2024 | CVE Year: 2020
Source: redhat | Vendor: Linux Kernel | Product: kernel
Status : PUBLISHED

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CVE-2020-10766 Description

A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.

Metrics

CVSS Version: 3.1 | Base Score: 5.5 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

l➤ Exploitability Metrics:
    Attack Vector (AV)* LOCAL
    Attack Complexity (AC)* LOW
    Privileges Required (PR)* LOW
    User Interaction (UI)* NONE
    Scope (S)* UNCHANGED

l➤ Impact Metrics:
    Confidentiality Impact (C)* HIGH
    Integrity Impact (I)* NONE
    Availability Impact (A)* NONE

Weakness Enumeration (CWE)

CWE-ID: CWE-440
CWE Name: CWE-440
Source: Linux Kernel

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-ID:
CAPEC Description:


Source: NVD (National Vulnerability Database).