CVE-2019-11579

Publication date 28 April 2019

Last updated 18 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

dhcp.c in dhcpcd before 7.2.1 contains a 1-byte read overflow with DHO_OPTSOVERLOADED.

From the Ubuntu Security Team

It was discovered that dhcpcd did not properly bound certain operations. An attacker could potentially use this vulnerability to obtain sensitive information.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
dhcpcd5	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.10 oracular	Not in release
	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Fixed 7.1.0-2
	22.10 kinetic	Fixed 7.1.0-2
	22.04 LTS jammy	Fixed 7.1.0-2
	21.10 impish	Fixed 7.1.0-2
	21.04 hirsute	Fixed 7.1.0-2
	20.10 groovy	Fixed 7.1.0-2
	20.04 LTS focal	Fixed 7.1.0-2
	19.10 eoan	Fixed 7.1.0-2
	19.04 disco	Ignored end of life
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Vulnerable
	16.04 LTS xenial	Vulnerable
	14.04 LTS trusty	Fixed 6.0.5-2+deb8u1build0.14.04.1~esm1

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Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N