USN-5378-1: Gzip vulnerability
13 April 2022
Gzip could be made to overwrite arbitrary files.
Releases
Packages
- 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
Ubuntu 20.04
Ubuntu 18.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-5378-2: liblzma5, xzdec, xz-utils, liblzma-dev, liblzma-doc
- USN-5378-3: liblzma5, xzdec, xz-utils, liblzma-dev, liblzma-doc
- USN-5378-4: gzip