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Oracle Linux 7 : kernel (ELSA-2016-0185)

high Nessus Plugin ID 88778

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Synopsis

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

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-0185 advisory.

 - [security] keys: Fix keyring ref leak in join_session_keyring() (David Howells) [1298931 1298036] {CVE-2016-0728}
 - [security] keys: Don't permit request_key() to construct a new keyring (David Howells) [1275929 1273465] {CVE-2015-7872}
 - [security] keys: Fix crash when attempt to garbage collect an uninstantiated keyring (David Howells) [1275929 1273465] {CVE-2015-7872}
 - [security] keys: Fix race between key destruction and finding a keyring by name (David Howells) [1275929 1273465] {CVE-2015-7872}
 - [x86] paravirt: Replace the paravirt nop with a bona fide empty function (Mateusz Guzik) [1259582 1259583] {CVE-2015-5157}
 - [x86] nmi: Fix a paravirt stack-clobbering bug in the NMI code (Mateusz Guzik) [1259582 1259583] {CVE-2015-5157}
 - [x86] nmi: Use DF to avoid userspace RSP confusing nested NMI detection (Mateusz Guzik) [1259582 1259583] {CVE-2015-5157}
 - [x86] nmi: Reorder nested NMI checks (Mateusz Guzik) [1259582 1259583] {CVE-2015-5157}
 - [x86] nmi: Improve nested NMI comments (Mateusz Guzik) [1259582 1259583] {CVE-2015-5157}
 - [x86] nmi: Switch stacks on userspace NMI entry (Mateusz Guzik) [1259582 1259583] {CVE-2015-5157}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues 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-2016-0185.html

Plugin Details

Severity: High

ID: 88778

File Name: oraclelinux_ELSA-2016-0185.nasl

Version: 2.13

Type: local

Agent: unix

Published: 2/17/2016

Updated: 10/22/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2015-5157

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2015-7872

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-abi-whitelists, p-cpe:/a:oracle:linux:kernel-tools-libs-devel, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-tools-libs, p-cpe:/a:oracle:linux:perf, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-tools, p-cpe:/a:oracle:linux:python-perf, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/16/2016

Vulnerability Publication Date: 7/23/2015

Reference Information

CVE: CVE-2015-5157, CVE-2015-7872

RHSA: 2016:0185