FreeBSD : memcached -- multiple vulnerabilities (f4bf713f-6ac7-4b76-8980-47bf90c5419f)

critical Nessus Plugin ID 94459

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Synopsis

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

Description

Cisco Talos reports :

Multiple integer overflow vulnerabilities exist within Memcached that could be exploited to achieve remote code execution on the targeted system. These vulnerabilities manifest in various Memcached functions that are used in inserting, appending, prepending, or modifying key-value data pairs. Systems which also have Memcached compiled with support for SASL authentication are also vulnerable to a third flaw due to how Memcached handles SASL authentication commands.

An attacker could exploit these vulnerabilities by sending a specifically crafted Memcached command to the targeted server.
Additionally, these vulnerabilities could also be exploited to leak sensitive process information which an attacker could use to bypass common exploitation mitigations, such as ASLR, and can be triggered multiple times. This enables reliable exploitation which makes these vulnerabilities severe.

Solution

Update the affected package.

See Also

http://www.nessus.org/u?dc2e8021

http://www.nessus.org/u?d9667a35

Plugin Details

Severity: Critical

ID: 94459

File Name: freebsd_pkg_f4bf713f6ac74b76898047bf90c5419f.nasl

Version: 2.6

Type: local

Published: 11/2/2016

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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: Critical

Base Score: 9.8

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

Vulnerability Information

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

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

Patch Publication Date: 11/2/2016

Vulnerability Publication Date: 10/31/2016

Reference Information

CVE: CVE-2016-8704, CVE-2016-8705, CVE-2016-8706