Debian DSA-3625-1 : squid3 - security update

high Nessus Plugin ID 92525
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


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


Several security issues have been discovered in the Squid caching proxy.

- CVE-2016-4051 :
CESG and Yuriy M. Kaminskiy discovered that Squid cachemgr.cgi was vulnerable to a buffer overflow when processing remotely supplied inputs relayed through Squid.

- CVE-2016-4052 :
CESG discovered that a buffer overflow made Squid vulnerable to a Denial of Service (DoS) attack when processing ESI responses.

- CVE-2016-4053 :
CESG found that Squid was vulnerable to public information disclosure of the server stack layout when processing ESI responses.

- CVE-2016-4054 :
CESG discovered that Squid was vulnerable to remote code execution when processing ESI responses.

- CVE-2016-4554 :
Jianjun Chen found that Squid was vulnerable to a header smuggling attack that could lead to cache poisoning and to bypass of same-origin security policy in Squid and some client browsers.

- CVE-2016-4555, CVE-2016-4556 :
'bfek-18' and '@vftable' found that Squid was vulnerable to a Denial of Service (DoS) attack when processing ESI responses, due to incorrect pointer handling and reference counting.


Upgrade the squid3 packages.

For the stable distribution (jessie), these problems have been fixed in version 3.4.8-6+deb8u3.

See Also

Plugin Details

Severity: High

ID: 92525

File Name: debian_DSA-3625.nasl

Version: 2.9

Type: local

Agent: unix

Published: 7/25/2016

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:squid3, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/22/2016

Reference Information

CVE: CVE-2016-4051, CVE-2016-4052, CVE-2016-4053, CVE-2016-4054, CVE-2016-4553, CVE-2016-4554, CVE-2016-4555, CVE-2016-4556

DSA: 3625