USN-5378-1: Gzip vulnerability

Releases

• Ubuntu 21.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

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

• gzip - 1.10-4ubuntu1.1

Ubuntu 20.04

• gzip - 1.10-0ubuntu4.1

Ubuntu 18.04

• gzip - 1.6-5ubuntu1.2

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

References

• CVE-2022-1271

Related notices

• USN-5378-2: xzdec, liblzma5, liblzma-doc, xz-utils, liblzma-dev
• USN-5378-3: xzdec, liblzma5, liblzma-doc, xz-utils, liblzma-dev
• USN-5378-4: gzip