CVE-2022-4543 - OpenCVE

A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://nvd.nist.gov/vuln/detail/CVE-2022-4543
https://www.cve.org/CVERecord?id=CVE-2022-4543
https://www.openwall.com/lists/oss-security/2022/12/16/3
https://www.willsroot.io/2022/12/entrybleed.html

History

Wed, 16 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00123}`	epss `{'score': 0.00159}`

Tue, 08 Apr 2025 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2023-01-11T00:00:00.000Z

Updated: 2025-04-08T19:55:00.788Z

Reserved: 2022-12-16T00:00:00.000Z

Link: CVE-2022-4543

Vulnrichment

Updated: 2024-08-03T01:41:45.599Z

NVD

Status : Modified

Published: 2023-01-11T15:15:09.673

Modified: 2025-04-08T20:15:18.790

Link: CVE-2022-4543

Redhat

Severity : Moderate

Publid Date: 2022-12-19T06:30:00Z

Links: CVE-2022-4543 - Bugzilla

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