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redhatcveRedhat.comRH:CVE-2023-2236
HistoryMay 10, 2023 - 7:21 a.m.

CVE-2023-2236

2023-05-1007:21:24
redhat.com
access.redhat.com
18
linux kernel
io_uring
use-after-free
vulnerability
local privilege escalation

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

0.0004 Low

EPSS

Percentile

5.1%

A use-after-free vulnerability was found in io_install_fixed_file in io_uring/filetable.c in the Linux Kernel’s io_uring subsystem. This flaw allows an attacker to achieve local privilege escalation.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

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

0.0004 Low

EPSS

Percentile

5.1%