Debian DSA-3625-1 : squid3 - security update

Medium Nessus Plugin ID 92525

Synopsis

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

Description

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.

Solution

Upgrade the squid3 packages.

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

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823968

https://security-tracker.debian.org/tracker/CVE-2016-4051

https://security-tracker.debian.org/tracker/CVE-2016-4052

https://security-tracker.debian.org/tracker/CVE-2016-4053

https://security-tracker.debian.org/tracker/CVE-2016-4054

https://security-tracker.debian.org/tracker/CVE-2016-4554

https://security-tracker.debian.org/tracker/CVE-2016-4555

https://security-tracker.debian.org/tracker/CVE-2016-4556

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

https://www.debian.org/security/2016/dsa-3625

Plugin Details

Severity: Medium

ID: 92525

File Name: debian_DSA-3625.nasl

Version: 2.7

Type: local

Agent: unix

Published: 2016/07/25

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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

Vulnerability Information

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2016/07/22

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