Debian DLA-2977-1 : xz-utils - LTS security update

high Nessus Plugin ID 159624

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2977 advisory.

- 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

Upgrade the xz-utils packages.

For Debian 9 stretch, this problem has been fixed in version 5.2.2-1.2+deb9u1.

Plugin Details

Severity: High

ID: 159624

File Name: debian_DLA-2977.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/10/2022

Updated: 3/21/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, 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:debian:debian_linux:liblzma-dev, p-cpe:/a:debian:debian_linux:liblzma-doc, p-cpe:/a:debian:debian_linux:liblzma5, p-cpe:/a:debian:debian_linux:xz-utils, p-cpe:/a:debian:debian_linux:xzdec, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 4/10/2022

Vulnerability Publication Date: 4/10/2022

Reference Information

CVE: CVE-2022-1271

Detections

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