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

high Nessus Plugin ID 132686

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Synopsis

The remote Red Hat host is missing one or more security updates for kpatch-patch.

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 these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL kpatch-patch package based on the guidance in RHSA-2020:0027.

See Also

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

https://bugzilla.redhat.com/show_bug.cgi?id=1746708

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=1747353

http://www.nessus.org/u?e2b1a849

Plugin Details

Severity: High

ID: 132686

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

Version: 1.9

Type: local

Agent: unix

Published: 1/7/2020

Updated: 4/28/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2019-15239

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

CVSS Score Source: CVE-2019-14821

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux: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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/6/2020

Vulnerability Publication Date: 8/20/2019

Reference Information

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

CWE: 416, 787

RHSA: 2020:0027