Debian DLA-1266-1 : squid3 security update

high Nessus Plugin ID 106589

Synopsis

The remote Debian host is missing a security update.

Description

Squid, a high-performance proxy caching server for web clients, has been found vulnerable to denial of service attacks associated with ESI response processing and intermediate CA certificate downloading.

CVE-2018-1000024

Incorrect pointer handling resulted in the ability of a remote server to return a crafted ESI response which could trigger a denial of service for all clients accessing the Squid service. This issue affects the Squid custom ESI parser.

CVE-2018-1000027

Incorrect pointer handling resulted in the possibility of a remote client delivering certain HTTP requests in conjunction with certain trusted server reponses involving the processing of ESI responses or downloading of intermediate CA certificates to trigger a denial of service for all clients accessing the squid service.

For Debian 7 'Wheezy', these problems have been fixed in version 3.1.20-2.2+deb7u8.

We recommend that you upgrade your squid3 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/2018/02/msg00001.html

https://packages.debian.org/source/wheezy/squid3

Plugin Details

Severity: High

ID: 106589

File Name: debian_DLA-1266.nasl

Version: 3.7

Type: local

Agent: unix

Published: 2/5/2018

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:squid3-dbg, p-cpe:/a:debian:debian_linux:squid3, p-cpe:/a:debian:debian_linux:squidclient, p-cpe:/a:debian:debian_linux:squid-cgi, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:squid3-common

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/2/2018

Reference Information

CVE: CVE-2018-1000024, CVE-2018-1000027