CVE-2023-0459

Copy_from_user Spectre-V1 Gadget in Linux Kernel

Published May 25, 2023 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3403-1 linux security update
Debian DLA Debian DLA DLA-3404-1 linux-5.10 security update
Ubuntu USN Ubuntu USN USN-6079-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6080-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6081-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6084-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6085-1 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-6090-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6091-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6092-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6094-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6095-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6096-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6109-1 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-6118-1 Linux kernel (Oracle) vulnerabilities
Ubuntu USN Ubuntu USN USN-6132-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6133-1 Linux kernel (Intel IoTG) vulnerabilities
Ubuntu USN Ubuntu USN USN-6134-1 Linux kernel (Intel IoTG) vulnerabilities
Ubuntu USN Ubuntu USN USN-6174-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6222-1 Linux kernel (Xilinx ZynqMP) vulnerabilities
Ubuntu USN Ubuntu USN USN-6235-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6256-1 Linux kernel (IoT) vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Google
Published
Updated
Sep 26, 2024, 6:39 PM
Reserved
Jan 24, 2023, 9:43 AM
Status
Modified
Published
May 25, 2023, 2:15 PM
Modified
Jun 17, 2026, 5:25 AM
Severity
Low
Public date
Feb 15, 2020, 6:30 AM