USN-5378-4: Gzip vulnerability
13 April 2022
Gzip could be made to overwrite arbitrary files.
Releases
Packages
- 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.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
gzip
-
1.6-4ubuntu1+esm1
Available with Ubuntu Pro
Ubuntu 14.04
-
gzip
-
1.6-3ubuntu1+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-5378-1: gzip-win32, gzip
- USN-5378-2: liblzma-dev, liblzma5, xzdec, xz-utils, liblzma-doc
- USN-5378-3: liblzma-dev, liblzma5, xzdec, xz-utils, liblzma-doc