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ubuntuUbuntuUSN-5173-2
HistoryDec 09, 2021 - 12:00 a.m.

libmodbus vulnerabilities

2021-12-0900:00:00
ubuntu.com
22
ubuntu
libmodbus library
modbus protocol
vulnerabilities
denial of service

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

9.5

Confidence

High

EPSS

0.005

Percentile

77.2%

Releases

  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • libmodbus - Library to send/receive data according to the Modbus protocol

Details

USN-5173-1 fixed vulnerabilities in libmodbus.
This update provides the corresponding updates for Ubuntu 14.04 ESM and
Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that libmodbus incorrectly handled inputs. An attacker
could possibly use this issue to cause a denial of service or other
unspecified impact.

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

9.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

9.5

Confidence

High

EPSS

0.005

Percentile

77.2%