Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2016-3503)

medium Nessus Plugin ID 87836

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-3503 advisory.

- The Crypto API in the Linux kernel before 3.18.5 allows local users to load arbitrary kernel modules via a bind system call for an AF_ALG socket with a module name in the salg_name field, a different vulnerability than CVE-2014-9644. (CVE-2013-7421)

- The Crypto API in the Linux kernel before 3.18.5 allows local users to load arbitrary kernel modules via a bind system call for an AF_ALG socket with a parenthesized module template expression in the salg_name field, as demonstrated by the vfat(aes) expression, a different vulnerability than CVE-2013-7421.
(CVE-2014-9644)

- Race condition in the IPC object implementation in the Linux kernel through 4.2.3 allows local users to gain privileges by triggering an ipc_addid call that leads to uid and gid comparisons against uninitialized data, related to msg.c, shm.c, and util.c. (CVE-2015-7613)

- The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c. (CVE-2015-5307)

- The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c. (CVE-2015-8104)

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-2016-3503.html

Plugin Details

Severity: Medium

ID: 87836

File Name: oraclelinux_ELSA-2016-3503.nasl

Version: 2.11

Type: local

Agent: unix

Published: 1/11/2016

Updated: 9/8/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2015-7613

Vulnerability Information

CPE: cpe:/o:oracle:linux:5, cpe:/o:oracle:linux:6, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-firmware, p-cpe:/a:oracle:linux:mlnx_en-2.6.32-400.37.15.el5uek, p-cpe:/a:oracle:linux:mlnx_en-2.6.32-400.37.15.el5uekdebug, p-cpe:/a:oracle:linux:mlnx_en-2.6.32-400.37.15.el6uek, p-cpe:/a:oracle:linux:mlnx_en-2.6.32-400.37.15.el6uekdebug, p-cpe:/a:oracle:linux:ofa-2.6.32-400.37.15.el5uek, p-cpe:/a:oracle:linux:ofa-2.6.32-400.37.15.el5uekdebug, p-cpe:/a:oracle:linux:ofa-2.6.32-400.37.15.el6uek, p-cpe:/a:oracle:linux:ofa-2.6.32-400.37.15.el6uekdebug

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: 1/8/2016

Vulnerability Publication Date: 1/23/2015

Reference Information

CVE: CVE-2013-7421, CVE-2014-9644, CVE-2015-5307, CVE-2015-7613, CVE-2015-8104

IAVA: 2015-A-0286-S, 2016-A-0024-S, 2015-A-0239-S, 2016-A-0188-S