RHEL 7 : kernel (RHSA-2020:2277)

high Nessus Plugin ID 137062

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-2020:2277 advisory.

- kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c (CVE-2017-18595)

- kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c (CVE-2019-19768)

- Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic (CVE-2020-10711)

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://access.redhat.com/security/cve/CVE-2019-19768

https://bugzilla.redhat.com/1786164

https://access.redhat.com/security/cve/CVE-2017-18595

https://access.redhat.com/security/cve/CVE-2020-10711

https://bugzilla.redhat.com/1758671

https://bugzilla.redhat.com/1825116

https://access.redhat.com/errata/RHSA-2020:2277

Plugin Details

Severity: High

ID: 137062

File Name: redhat-RHSA-2020-2277.nasl

Version: 1.7

Type: local

Agent: unix

Published: 6/3/2020

Updated: 1/23/2023

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

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

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

CVSS Score Source: CVE-2017-18595

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:redhat:rhel_aus:7.3:*:*:*:*:*:*:*, cpe:2.3:o:redhat:rhel_e4s:7.3:*:*:*:*:*:*:*, cpe:2.3:o:redhat:rhel_tus:7.3:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-debug:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-debug-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-headers:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:perf:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:python-perf:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-abi-whitelists:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools-libs-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-bootwrapper:*:*:*:*:*:*:*

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: 5/26/2020

Vulnerability Publication Date: 9/4/2019

Reference Information

CVE: CVE-2017-18595, CVE-2019-19768, CVE-2020-10711

CWE: 416, 476

RHSA: 2020:2277