RHEL 8 : kpatch-patch (RHSA-2021:3442)

high Nessus Plugin ID 153096

Synopsis

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

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3442 advisory.

- kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)

- kernel: use-after-free in route4_change() in net/sched/cls_route.c (CVE-2021-3715)

- kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576)

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/20.html

https://cwe.mitre.org/data/definitions/119.html

https://cwe.mitre.org/data/definitions/362.html

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

https://access.redhat.com/security/cve/CVE-2021-3609

https://access.redhat.com/security/cve/CVE-2021-3715

https://access.redhat.com/security/cve/CVE-2021-37576

https://access.redhat.com/errata/RHSA-2021:3442

https://bugzilla.redhat.com/1971651

https://bugzilla.redhat.com/1986506

https://bugzilla.redhat.com/1993988

Plugin Details

Severity: High

ID: 153096

File Name: redhat-RHSA-2021-3442.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/7/2021

Updated: 9/7/2021

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

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 Score Source: CVE-2021-37576

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:rhel_e4s:8.1, cpe:/o:redhat:rhel_eus:8.1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_27_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_32_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_34_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_38_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_43_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_44_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_48_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_51_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_51_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_52_1

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: 9/7/2021

Vulnerability Publication Date: 6/24/2021

Reference Information

CVE: CVE-2021-3609, CVE-2021-3715, CVE-2021-37576

RHSA: 2021:3442

CWE: 20, 119, 362, 416