Ubuntu 5378-3: XZ Utils vulnerability | LinuxSecurity.com
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Ubuntu Security Notice USN-5378-3
April 13, 2022

xz-utils vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

XZ Utils could be made to overwrite arbitrary files.

Software Description:
- xz-utils: XZ-format compression utilities

Details:

USN-5378-2 fixed a vulnerability in XZ Utils. This update provides
the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM.

Original advisory details:

 Cleemy Desu Wayo discovered that Gzip incorrectly handled certain
 filenames. If a user or automated system were tricked into performing zgrep
 operations with specially crafted filenames, a remote attacker could
 overwrite arbitrary files.

Update instructions:

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

Ubuntu 16.04 ESM:
  xz-utils                        5.1.1alpha+20120614-2ubuntu2.16.04.1+esm1

Ubuntu 14.04 ESM:
  xz-utils                        5.1.1alpha+20120614-2ubuntu2.14.04.1+esm1

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

References:
  https://ubuntu.com/security/notices/USN-5378-3
  https://ubuntu.com/security/notices/USN-5378-1
  CVE-2022-1271

Ubuntu 5378-3: XZ Utils vulnerability

April 13, 2022

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: XZ Utils could be made to overwrite arbitrary files. Software Description: - xz-utils: XZ-format compression utilities Details: USN-5378-2 fixed a vulnerability in XZ Utils. This update provides the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM. Original advisory details: Cleemy Desu Wayo discovered that Gzip incorrectly handled certain filenames. If a user or automated system were tricked into performing zgrep operations with specially crafted filenames, a remote attacker could overwrite arbitrary files.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: xz-utils 5.1.1alpha+20120614-2ubuntu2.16.04.1+esm1 Ubuntu 14.04 ESM: xz-utils 5.1.1alpha+20120614-2ubuntu2.14.04.1+esm1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5378-3

https://ubuntu.com/security/notices/USN-5378-1

CVE-2022-1271

Severity
Ubuntu Security Notice USN-5378-3

Package Information

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