[USN-5359-2] rsync vulnerability

[Rodrigo Figueiredo Zaiden]

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Ubuntu Security Notice USN-5359-2
June 13, 2022

rsync vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM

Summary:

rsync could be made to crash or run programs if it received
specially crafted network traffic.

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

Details:

USN-5359-1 fixed vulnerabilities in rsync.
This update provides the corresponding updates for Ubuntu 16.04 ESM.

Original advisory details:

  Danilo Ramos discovered that rsync incorrectly handled memory when
  performing certain zlib deflating operations. An attacker could use this
  issue to cause rsync to crash, resulting in a denial of service, or
  possibly execute arbitrary code.

Update instructions:

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

Ubuntu 16.04 ESM:
   rsync                           3.1.1-3ubuntu1.3+esm1

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

References:
   https://ubuntu.com/security/notices/USN-5359-2
   https://ubuntu.com/security/notices/USN-5359-1
   CVE-2018-25032
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