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Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2015-3064)

medium Nessus Plugin ID 85177

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2015-3064 advisory.

 - The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a negative groups issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c. (CVE-2014-8989)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2015-3064.html

Plugin Details

Severity: Medium

ID: 85177

File Name: oraclelinux_ELSA-2015-3064.nasl

Version: 2.15

Type: local

Agent: unix

Published: 8/3/2015

Updated: 9/8/2021

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Critical

Base Score: 10

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

CVSS Score Source: CVE-2014-8989

CVSS v3

Risk Factor: Medium

Base Score: 5.5

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek-debug-devel, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:dtrace-modules-3.8.13-98.el6uek, p-cpe:/a:oracle:linux:kernel-uek-firmware, p-cpe:/a:oracle:linux:dtrace-modules-shared-headers, p-cpe:/a:oracle:linux:dtrace-modules-3.8.13-98.el7uek, p-cpe:/a:oracle:linux:dtrace-modules-provider-headers, cpe:/o:oracle:linux:6

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 7/30/2015

Vulnerability Publication Date: 11/18/2014

Reference Information

CVE: CVE-2014-3215, CVE-2014-8159, CVE-2014-8171, CVE-2014-8989, CVE-2014-9529, CVE-2014-9585, CVE-2015-0239, CVE-2015-1421, CVE-2015-1593, CVE-2015-2150, CVE-2015-2830, CVE-2015-2922, CVE-2015-3339, CVE-2015-3636