FreeBSD : squid -- remote DoS in HTTP response processing (660ebbf5-daeb-11e5-b2bd-002590263bf5)

Medium Nessus Plugin ID 88944

Synopsis

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

Description

Squid security advisory 2016:2 reports :

Due to incorrect bounds checking Squid is vulnerable to a denial of service attack when processing HTTP responses.

These problems allow remote servers delivering certain unusual HTTP response syntax to trigger a denial of service for all clients accessing the Squid service.

HTTP responses containing malformed headers that trigger this issue are becoming common. We are not certain at this time if that is a sign of malware or just broken server scripting.

Solution

Update the affected package.

See Also

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207454

http://www.squid-cache.org/Advisories/SQUID-2016_2.txt

https://www.openwall.com/lists/oss-security/2016/02/24/12

http://www.nessus.org/u?241be2f2

Plugin Details

Severity: Medium

ID: 88944

File Name: freebsd_pkg_660ebbf5daeb11e5b2bd002590263bf5.nasl

Version: 2.6

Type: local

Published: 2016/02/25

Updated: 2018/11/21

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:squid, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2016/02/24

Vulnerability Publication Date: 2016/02/24

Reference Information

CVE: CVE-2016-2569, CVE-2016-2570, CVE-2016-2571