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redhatcveRedhat.comRH:CVE-2023-2194
HistoryApr 20, 2023 - 3:57 p.m.

CVE-2023-2194

2023-04-2015:57:33
redhat.com
access.redhat.com
10
vulnerability
linux kernel
slimpro i2c
out-of-bounds write
user data
memcpy
privileged user
code execution
mitigation
blacklist.

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

An out-of-bounds write vulnerability was found in the Linux kernel’s SLIMpro I2C device driver. The userspace “data->block[0]” variable was not limited to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end of dma_buffer. This issue could allow a local privileged user to crash the system or potentially achieve code execution.

Mitigation

This flaw can be mitigated by preventing the i2c-xgene-slimpro module from being loaded. Please see <https://access.redhat.com/solutions/41278&gt; for information on how to blacklist a kernel module to prevent it from being loaded automatically.

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%