[USN-5378-1] Gzip vulnerability
Marc Deslauriers
marc.deslauriers at canonical.com
Wed Apr 13 14:16:52 UTC 2022
==========================================================================
Ubuntu Security Notice USN-5378-1
April 13, 2022
gzip vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
Gzip could be made to overwrite arbitrary files.
Software Description:
- gzip: GNU compression utilities
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 21.10:
gzip 1.10-4ubuntu1.1
Ubuntu 20.04 LTS:
gzip 1.10-0ubuntu4.1
Ubuntu 18.04 LTS:
gzip 1.6-5ubuntu1.2
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5378-1
CVE-2022-1271
Package Information:
https://launchpad.net/ubuntu/+source/gzip/1.10-4ubuntu1.1
https://launchpad.net/ubuntu/+source/gzip/1.10-0ubuntu4.1
https://launchpad.net/ubuntu/+source/gzip/1.6-5ubuntu1.2
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