RHEL 7 : kpatch-patch (RHSA-2020:0027)

high Nessus Plugin ID 132686
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0027 advisory.

- Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

- kernel: local attacker can trigger multiple use-after-free conditions results in privilege escalation (CVE-2019-15239)

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://cwe.mitre.org/data/definitions/416.html

https://cwe.mitre.org/data/definitions/787.html

https://access.redhat.com/security/cve/CVE-2019-14821

https://access.redhat.com/security/cve/CVE-2019-15239

https://access.redhat.com/errata/RHSA-2020:0027

https://bugzilla.redhat.com/1746708

https://bugzilla.redhat.com/1747353

Plugin Details

Severity: High

ID: 132686

File Name: redhat-RHSA-2020-0027.nasl

Version: 1.3

Type: local

Agent: unix

Published: 1/7/2020

Updated: 7/21/2021

Dependencies: ssh_get_info.nasl, redhat_repos.nasl

Risk Information

CVSS Score Source: CVE-2019-15239

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:rhel_aus:7.7, cpe:/o:redhat:rhel_e4s:7.7, cpe:/o:redhat:rhel_eus:7.7, cpe:/o:redhat:rhel_tus:7.7, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_1_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_1_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_3

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/6/2020

Vulnerability Publication Date: 8/20/2019

Reference Information

CVE: CVE-2019-14821, CVE-2019-15239

RHSA: 2020:0027

CWE: 416, 787