Debian DSA-5218-1 : zlib - security update

critical Nessus Plugin ID 164438

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Synopsis

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

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5218 advisory.

Evgeny Legerov reported a heap-based buffer overflow vulnerability in the inflate operation in zlib, which could result in denial of service or potentially the execution of arbitrary code if specially crafted input is processed. For the stable distribution (bullseye), this problem has been fixed in version 1:1.2.11.dfsg-2+deb11u2. We recommend that you upgrade your zlib packages. For the detailed security status of zlib please refer to its security tracker page at: https://security- tracker.debian.org/tracker/zlib

Tenable has extracted the preceding description block directly from the Debian security advisory.

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 zlib packages.

For the stable distribution (bullseye), this problem has been fixed in version 1

Plugin Details

Severity: Critical

ID: 164438

File Name: debian_DSA-5218.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/26/2022

Updated: 1/24/2025

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: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2022-37434

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:lib32z1, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:zlib1g, p-cpe:/a:debian:debian_linux:lib64z1-dev, p-cpe:/a:debian:debian_linux:libn32z1-dev, p-cpe:/a:debian:debian_linux:zlib1g-udeb, p-cpe:/a:debian:debian_linux:zlib1g-dev, p-cpe:/a:debian:debian_linux:libn32z1, p-cpe:/a:debian:debian_linux:lib64z1, p-cpe:/a:debian:debian_linux:lib32z1-dev

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/25/2022

Vulnerability Publication Date: 8/5/2022

Reference Information

CVE: CVE-2022-37434

Detections

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