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Ubuntu 18.04 LTS USN-5583-2 Critical: Systemd Networking Problems

ubuntu
Calendar Grey September 14, 2022
Dist Ubuntu Esm H88
USN-5584-1 tackles a security flaw within OpenSSL in Ubuntu 20.04 LTS leading to potential data breaches.
USN-5583-1 caused a regression in systemd

Summary

USN-5583-1 caused a regression in systemd

Software Description:

- systemd: system and service manager

Details:

USN-5583-1 fixed vulnerabilities in systemd. Unfortunately this caused a

regression by introducing netowrking problems for some users. This update fixes

the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that systemd incorrectly handled certain DNS requests,

which leads to user-after-free vulnerability. An attacker could possibly use

this issue to cause a crash or execute arbitrary code. (CVE-2022-2526)

Topics%20covered

Topics Covered

security advisory update instructions ubuntu networking issue systemd regression

Update Instructions

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

Ubuntu 18.04 LTS:
  systemd                         237-3ubuntu10.56

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

References

https://ubuntu.com/security/notices/USN-5583-2

https://ubuntu.com/security/notices/USN-5583-1

https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1988119

Severity
critical
Lowest
Low
Medium
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Critical

September 14, 2022

Topics%20covered

Topics Covered

security advisory update instructions ubuntu networking issue systemd regression

Package Information

https://launchpad.net/ubuntu/+source/systemd/237-3ubuntu10.56

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