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FreeBSD: VID-B019585A-BFEA-11EC-B46C-B42E991FC52E (CVE-2022-1271): zgrep -- arbitrary file write

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FreeBSD: VID-B019585A-BFEA-11EC-B46C-B42E991FC52E (CVE-2022-1271): zgrep -- arbitrary file write

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/07/2022
Created
11/08/2022
Added
11/04/2022
Modified
11/04/2022

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)

  • freebsd-upgrade-package-gzip

References

  • CVE-2022-1271
  • USN-5378-1
  • USN-5378-2
  • USN-5378-3
  • USN-5378-4

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