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Ubuntu: (Multiple Advisories) (CVE-2022-1271): Gzip vulnerability

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Ubuntu: (Multiple Advisories) (CVE-2022-1271): Gzip vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/12/2022
Created
04/19/2022
Added
04/14/2022
Modified
03/22/2023

Description

An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.

Solution(s)

  • ubuntu-upgrade-gzip
  • ubuntu-upgrade-xz-utils

References

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