FreeBSD : rubygems -- deserialization vulnerability (2c8bd00d-ada2-11e7-82af-8dbff7d75206)

High Nessus Plugin ID 103760

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VPR Score: 5.9

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

oss-security mailing list :

There is a possible unsafe object desrialization vulnerability in RubyGems. It is possible for YAML deserialization of gem specifications to bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.

Solution

Update the affected packages.

See Also

https://www.openwall.com/lists/oss-security/2017/10/10/2

http://blog.rubygems.org/2017/10/09/2.6.14-released.html

http://www.nessus.org/u?21ff2e04

Plugin Details

Severity: High

ID: 103760

File Name: freebsd_pkg_2c8bd00dada211e782af8dbff7d75206.nasl

Version: 3.6

Type: local

Published: 2017/10/11

Updated: 2021/01/04

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

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:ruby22-gems, p-cpe:/a:freebsd:freebsd:ruby23-gems, p-cpe:/a:freebsd:freebsd:ruby24-gems, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 2017/10/10

Vulnerability Publication Date: 2017/10/09

Reference Information

CVE: CVE-2017-0903