Debian DSA-5123-1 : xz-utils - security update

high Nessus Plugin ID 159904

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Synopsis

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

Description

The remote Debian 10 / 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5123 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 the stable distribution (bullseye), this problem has been fixed in version 5.2.5-2.1~deb11u1.

Plugin Details

Severity: High

ID: 159904

File Name: debian_DSA-5123.nasl

Version: 1.6

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/19/2022

Updated: 6/7/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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:liblzma5, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:xz-utils, p-cpe:/a:debian:debian_linux:xzdec, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:liblzma-dev, p-cpe:/a:debian:debian_linux:liblzma-doc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/18/2022

Vulnerability Publication Date: 4/18/2022

Reference Information

CVE: CVE-2022-1271

IAVA: 2024-A-0327

Detections

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