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redhatcveRedhat.comRH:CVE-2022-0847
HistoryMar 07, 2022 - 12:28 p.m.

CVE-2022-0847

2022-03-0712:28:23
redhat.com
access.redhat.com
210

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.076 Low

EPSS

Percentile

94.1%

JSON

A flaw was found in the way the “flags” member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

Mitigation

Currently there is no mitigation available for this flaw. Customers should update to fixed packages, once they are available.

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Attack Complexity

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User Interaction

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Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

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LOCAL

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LOW

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NONE

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COMPLETE

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COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.076 Low

EPSS

Percentile

94.1%

JSON
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