What is the severity of USN-4263-2?

USN-4263-2 addresses a critical vulnerability in Sudo that could allow local attackers to exploit memory handling issues.

How do I fix USN-4263-2?

To fix USN-4263-2, upgrade to the versions specified in the advisory for Sudo on Ubuntu 12.04 or 14.04.

Which Ubuntu versions are affected by USN-4263-2?

USN-4263-2 affects Ubuntu 12.04 and 14.04 distributions.

What was discovered in the USN-4263-2 vulnerability?

The vulnerability in USN-4263-2 was discovered due to improper memory operation handling in Sudo when the pwfeedback option is enabled.

What packages are associated with USN-4263-2?

USN-4263-2 is associated with the sudo and sudo-ldap packages in the specified Ubuntu versions.

Vulnerability/
USN-4263-2

5/2/2020

USN-4263-2: Sudo vulnerability

First published: Wed Feb 05 2020(Updated: )

USN-4263-1 fixed a vulnerability in Sudo. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: Joe Vennix discovered that Sudo incorrectly handled memory operations when the pwfeedback option is enabled. A local attacker could possibly use this issue to obtain unintended access to the administrator account.

Affected Software	Affected Version	How to fix
All of
ubuntu/sudo-ldap	<1.8.9p5-1ubuntu1.5+esm3	1.8.9p5-1ubuntu1.5+esm3
Ubuntu Linux	=14.04
All of
ubuntu/sudo	<1.8.9p5-1ubuntu1.5+esm3	1.8.9p5-1ubuntu1.5+esm3
Ubuntu Linux	=14.04
All of
ubuntu/sudo-ldap	<1.8.3p1-1ubuntu3.9	1.8.3p1-1ubuntu3.9
Ubuntu Linux	=12.04
All of
ubuntu/sudo	<1.8.3p1-1ubuntu3.9	1.8.3p1-1ubuntu3.9
Ubuntu Linux	=12.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2019-18634

Frequently Asked Questions

What is the severity of USN-4263-2?
USN-4263-2 addresses a critical vulnerability in Sudo that could allow local attackers to exploit memory handling issues.
How do I fix USN-4263-2?
To fix USN-4263-2, upgrade to the versions specified in the advisory for Sudo on Ubuntu 12.04 or 14.04.
Which Ubuntu versions are affected by USN-4263-2?
USN-4263-2 affects Ubuntu 12.04 and 14.04 distributions.
What was discovered in the USN-4263-2 vulnerability?
The vulnerability in USN-4263-2 was discovered due to improper memory operation handling in Sudo when the pwfeedback option is enabled.
What packages are associated with USN-4263-2?
USN-4263-2 is associated with the sudo and sudo-ldap packages in the specified Ubuntu versions.

agent/last-modified-date
agent/title
agent/severity
agent/references
agent/description
agent/first-publish-date
agent/type
agent/softwarecombine
agent/event
agent/trending
agent/source
agent/tags
collector/usn
source/Ubuntu
anchor-related/USN-4263-1
agent/software-canonical-lookup
agent/software-canonical-lookup-request
package-manager/ubuntu
vendor/ubuntu
canonical/ubuntu linux
version/ubuntu linux/14.04
version/ubuntu linux/12.04

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