Oracle Linux 7 : kernel (ELSA-2019-2829)

high Nessus Plugin ID 129138
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2019-2829 advisory.

- A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host. (CVE-2019-14835)

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-2019-2829.html

Plugin Details

Severity: High

ID: 129138

File Name: oraclelinux_ELSA-2019-2829.nasl

Version: 1.6

Type: local

Agent: unix

Published: 9/23/2019

Updated: 9/8/2021

Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl

Risk Information

CVSS Score Source: CVE-2019-14835

VPR

Risk Factor: Medium

Score: 6.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

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

Vulnerability Information

CPE: cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel-debug:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel-debug-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel-headers:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel-abi-whitelists:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel-tools:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel-tools-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:kernel-tools-libs-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:perf:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:python-perf:*:*:*:*:*:*:*, p-cpe:2.3:a:oracle:linux:bpftool:*:*:*:*:*:*:*

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: 9/20/2019

Vulnerability Publication Date: 9/17/2019

Reference Information

CVE: CVE-2019-14835

RHSA: 2019:2829