CVE-2022-4543

Published: Jan 11, 2023Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 1.8 / Impact: 3.6

Source: NVD

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.

Affected (1)

Products: Linux: Linux Kernel

Linux

1 product

Linux Kernel

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	All versions

Related CWEs

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

CWE-203

Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (4)

https://www.openwall.com/lists/oss-security/2022/12/16/3

Source: secalert@redhat.com

ExploitMailing ListThird Party Advisory

https://www.willsroot.io/2022/12/entrybleed.html

Source: secalert@redhat.com

ExploitThird Party Advisory

https://www.openwall.com/lists/oss-security/2022/12/16/3

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitMailing ListThird Party Advisory

https://www.willsroot.io/2022/12/entrybleed.html

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

Timeline

No history available yet.