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Ubuntu 22.10, 22.04 LTS USN-5908-1 Critical Sudo Privilege Escalation

ubuntu
Calendar Grey March 2, 2023
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Ubuntu Security Announcement USN-5909-1 highlights a flaw in the kernel that could lead to system instability or unauthorized access. Upgrade immediately!
Sudo could be made to crash or escalate privileges.

Summary

Sudo could be made to crash or escalate privileges.

Software Description:

- sudo: Provide limited super user privileges to specific users

Details:

It was discovered that Sudo incorrectly handled the per-command chroot

feature. In certain environments where Sudo is configured with a rule that

contains a CHROOT setting, a local attacker could use this issue to cause

Sudo to crash, resulting in a denial of service, or possibly escalate

privileges.

Topics%20covered

Topics Covered

security advisory denial of service critical privilege escalation sudo ubuntu

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.10:
   sudo                            1.9.11p3-1ubuntu1.2
   sudo-ldap                       1.9.11p3-1ubuntu1.2

Ubuntu 22.04 LTS:
   sudo                            1.9.9-1ubuntu2.3
   sudo-ldap                       1.9.9-1ubuntu2.3

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5908-1

CVE-2023-27320

Severity
critical
Lowest
Low
Medium
High
Critical

March 02, 2023

Topics%20covered

Topics Covered

security advisory denial of service critical privilege escalation sudo ubuntu

Package Information

https://launchpad.net/ubuntu/+source/sudo/1.9.11p3-1ubuntu1.2
https://launchpad.net/ubuntu/+source/sudo/1.9.9-1ubuntu2.3

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