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Alpine Linux: CVE-2022-1271: Improper Input Validation

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Alpine Linux: CVE-2022-1271: Improper Input Validation

Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
08/31/2022
Created
04/09/2024
Added
03/26/2024
Modified
04/09/2024

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)

  • alpine-linux-upgrade-gzip
  • alpine-linux-upgrade-xz

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