Ubuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : squid3 vulnerabilities (USN-2995-1)

Ubuntu Security Notice (C) 2016 Canonical, Inc. / NASL script (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Yuriy M. Kaminskiy discovered that the Squid pinger utility
incorrectly handled certain ICMPv6 packets. A remote attacker could
use this issue to cause Squid to crash, resulting in a denial of
service, or possibly cause Squid to leak information into log files.
(CVE-2016-3947)

Yuriy M. Kaminskiy discovered that the Squid cachemgr.cgi tool
incorrectly handled certain crafted data. A remote attacker could use
this issue to cause Squid to crash, resulting in a denial of service,
or possibly execute arbitrary code. (CVE-2016-4051)

It was discovered that Squid incorrectly handled certain Edge Side
Includes (ESI) responses. A remote attacker could possibly use this
issue to cause Squid to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2016-4052, CVE-2016-4053,
CVE-2016-4054)

Jianjun Chen discovered that Squid did not correctly ignore the Host
header when absolute-URI is provided. A remote attacker could possibly
use this issue to conduct cache-poisoning attacks. This issue only
affected Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04 LTS.
(CVE-2016-4553)

Jianjun Chen discovered that Squid incorrectly handled certain HTTP
Host headers. A remote attacker could possibly use this issue to
conduct cache-poisoning attacks. (CVE-2016-4554)

It was discovered that Squid incorrectly handled certain Edge Side
Includes (ESI) responses. A remote attacker could possibly use this
issue to cause Squid to crash, resulting in a denial of service.
(CVE-2016-4555, CVE-2016-4556).

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

Solution :

Update the affected squid-cgi and / or squid3 packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 6.2
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 91558 ()

Bugtraq ID:

CVE ID: CVE-2016-3947
CVE-2016-4051
CVE-2016-4052
CVE-2016-4053
CVE-2016-4054
CVE-2016-4553
CVE-2016-4554
CVE-2016-4555
CVE-2016-4556

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