CVE-2019-14463

Publication date 31 July 2019

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301.

From the Ubuntu Security Team

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libmodbus	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Ignored end of life
	18.04 LTS bionic	Fixed 3.0.6-2+deb9u1build0.18.04.1
	16.04 LTS xenial	Fixed 3.0.6-1ubuntu0.1~esm1 Ubuntu Pro
	14.04 LTS trusty	Fixed 3.0.5-1ubuntu0.1~esm1 Ubuntu Pro

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Notes

ebarretto

Commit introduces regression, check if both commits are being applied.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libmodbus	Upstream: 5ccdf5e Upstream: ca3fcb1 Upstream: 6f915d4 Upstream: 2b5cb58 Upstream: 64cd092

Severity score breakdown

Parameter	Value
Base score	9.1 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H