FreeBSD : squid -- multiple vulnerabilities (297117ba-f92d-11e5-92ce-002590263bf5)

high Nessus Plugin ID 90334

Language:

Synopsis

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

Description

Squid security advisory 2016:3 reports :

Due to a buffer overrun Squid pinger binary is vulnerable to denial of service or information leak attack when processing ICMPv6 packets.

This bug also permits the server response to manipulate other ICMP and ICMPv6 queries processing to cause information leak.

This bug allows any remote server to perform a denial of service attack on the Squid service by crashing the pinger. This may affect Squid HTTP routing decisions. In some configurations, sub-optimal routing decisions may result in serious service degradation or even transaction failures.

If the system does not contain buffer-overrun protection leading to that crash this bug will instead allow attackers to leak arbitrary amounts of information from the heap into Squid log files. This is of higher importance than usual because the pinger process operates with root priviliges.

Squid security advisory 2016:4 reports :

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

This problem allows a malicious client script and remote server delivering certain unusual HTTP response syntax to trigger a denial of service for all clients accessing the Squid service.

Solution

Update the affected package.

Plugin Details

Severity: High

ID: 90334

File Name: freebsd_pkg_297117baf92d11e592ce002590263bf5.nasl

Version: 2.5

Type: local

Family: FreeBSD Local Security Checks

Published: 4/5/2016

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS v3

Risk Factor: High

Base Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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: 4/2/2016

Vulnerability Publication Date: 3/28/2016

Reference Information

CVE: CVE-2016-3947, CVE-2016-3948

Detections

Analytics