CVE-2022-4543

State: Published
Severity: 5.5 Medium
Published: Jan 11, 2023
Updated: Apr 8, 2025
Reserved: Dec 16, 2022

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-200

Affected Products

Product	Versions
Linux kerneln/a	all versionsAffected

References

https://www.openwall.com/lists/oss-security/2022/12/16/3
https://www.willsroot.io/2022/12/entrybleed.html

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