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GLSA-202209-01 : GNU Gzip, XZ Utils: Arbitrary file write

high Nessus Plugin ID 164802

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Description

The remote host is affected by the vulnerability described in GLSA-202209-01 (GNU Gzip, XZ Utils: Arbitrary file write)

 - 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. (CVE-2022-1271)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

All GNU Gzip users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=app-arch/gzip-1.12 All XZ Utils users should upgrade to the latest version:

 # emerge --sync # emerge --ask --oneshot --verbose >=app-arch/xz-utils-5.2.5

See Also

https://security.gentoo.org/glsa/202209-01

https://bugs.gentoo.org/show_bug.cgi?id=837152

https://bugs.gentoo.org/show_bug.cgi?id=837155

Plugin Details

Severity: High

ID: 164802

File Name: gentoo_GLSA-202209-01.nasl

Version: 1.3

Type: local

Published: 9/7/2022

Updated: 10/12/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2022-1271

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:xz-utils, cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:gzip

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/7/2022

Vulnerability Publication Date: 4/19/2022

Reference Information

CVE: CVE-2022-1271