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Debian DLA-2085-1 : zlib security update

critical Nessus Plugin ID 133323

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Synopsis

The remote Debian host is missing a security update.

Description

Several issues have been found in zlib, a compression library. They are basically about improper big-endian CRC calculation, improper left shift of negative integers and improper pointer arithmetic.

For Debian 8 'Jessie', these problems have been fixed in version 1:1.2.8.dfsg-2+deb8u1.

We recommend that you upgrade your zlib packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2020/01/msg00030.html

https://packages.debian.org/source/jessie/zlib

Plugin Details

Severity: Critical

ID: 133323

File Name: debian_DLA-2085.nasl

Version: 1.5

Type: local

Agent: unix

Published: 1/30/2020

Updated: 3/28/2024

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: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2016-9843

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:lib32z1, p-cpe:/a:debian:debian_linux:zlib1g, p-cpe:/a:debian:debian_linux:lib64z1-dev, p-cpe:/a:debian:debian_linux:zlib1g-dev, cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:lib64z1, p-cpe:/a:debian:debian_linux:lib32z1-dev, p-cpe:/a:debian:debian_linux:zlib1g-dbg

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/29/2020

Vulnerability Publication Date: 5/23/2017

Reference Information

CVE: CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843