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Ubuntu 14.04 ESM & 16.04 ESM: USN-5378-4 Critical Gzip Threat

ubuntu
Calendar Grey April 13, 2022
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-5378-5 addresses a Gzip vulnerability that can lead to the unauthorized modification of files across various Ubuntu versions.
Gzip could be made to overwrite arbitrary files.

Summary

Gzip could be made to overwrite arbitrary files.

Software Description:

- gzip: GNU compression utilities

Details:

USN-5378-1 fixed a vulnerability in Gzip. 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.

Topics%20covered

Topics Covered

security advisory critical file overwrite ubuntu gzip

Update Instructions

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

Ubuntu 16.04 ESM:
  gzip                            1.6-4ubuntu1+esm1

Ubuntu 14.04 ESM:
  gzip                            1.6-3ubuntu1+esm1

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

References

https://ubuntu.com/security/notices/USN-5378-4

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

CVE-2022-1271

Severity
critical
Lowest
Low
Medium
High
Critical

April 13, 2022

Topics%20covered

Topics Covered

security advisory critical file overwrite ubuntu gzip

Package Information

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