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Ubuntu 20.04 LTS: USN-5573-1 Critical: Rsync Denial Of Service

ubuntu
Calendar Grey August 18, 2022
Dist Ubuntu Esm H88
Recent rsync vulnerability poses risks to Ubuntu's stability and security. Exploitable inputs threaten system integrity, requiring urgent updates and security measures
rsync could be made to crash or run programs if it received specially crafted input.

Summary

rsync could be made to crash or run programs if it received specially

crafted input.

Software Description:

- rsync: fast, versatile, remote (and local) file-copying tool

Details:

Evgeny Legerov discovered that zlib incorrectly handled memory when

performing certain inflate operations. An attacker could use this issue

to cause rsync to crash, resulting in a denial of service, or possibly

execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service critical code execution Ubuntu attack rsync

Update Instructions

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

Ubuntu 20.04 LTS:
rsync 3.1.3-8ubuntu0.4

Ubuntu 18.04 LTS:
rsync 3.1.2-2.1ubuntu1.5

Ubuntu 16.04 ESM:
rsync 3.1.1-3ubuntu1.3+esm2

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

References

https://ubuntu.com/security/notices/USN-5573-1

CVE-2022-37434

Severity
critical
Lowest
Low
Medium
High
Critical

August 18, 2022

Topics%20covered

Topics Covered

security advisory denial of service critical code execution Ubuntu attack rsync

Package Information

https://launchpad.net/ubuntu/+source/rsync/3.1.3-8ubuntu0.4
https://launchpad.net/ubuntu/+source/rsync/3.1.2-2.1ubuntu1.5

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