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AUSCERT External Security Bulletin Redistribution
ESB-2022.1633
USN-5378-4: Gzip vulnerability
14 April 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Gzip
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2022-1271
Original Bulletin:
https://ubuntu.com/security/notices/USN-5378-4
Comment: CVSS (Max): 7.1 CVE-2022-1271 (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
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USN-5378-4: Gzip vulnerability
13 April 2022
Gzip could be made to overwrite arbitrary files.
Releases
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o 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
o gzip - 1.6-4ubuntu1+esm1
Available with UA Infra or UA Desktop
Ubuntu 14.04
o gzip - 1.6-3ubuntu1+esm1
Available with UA Infra or UA Desktop
In general, a standard system update will make all the necessary changes.
References
o CVE-2022-1271
Related notices
o USN-5378-1 : gzip, gzip-win32
o USN-5378-2 : xzdec, liblzma5, liblzma-doc, liblzma-dev, xz-utils
o USN-5378-3 : xzdec, liblzma5, liblzma-doc, liblzma-dev, xz-utils
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