RHEL 7 : kpatch-patch (RHSA-2021:3523)

high Nessus Plugin ID 153370

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-2021:3523 advisory.

- kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)

- kernel: race condition for removal of the HCI controller (CVE-2021-32399)

- kernel: Use after free via PI futex state (CVE-2021-3347)

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/362.html

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

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

https://access.redhat.com/security/cve/CVE-2021-3347

https://access.redhat.com/security/cve/CVE-2021-22555

https://access.redhat.com/security/cve/CVE-2021-32399

https://access.redhat.com/errata/RHSA-2021:3523

https://bugzilla.redhat.com/1922249

https://bugzilla.redhat.com/1970807

https://bugzilla.redhat.com/1980101

Plugin Details

Severity: High

ID: 153370

File Name: redhat-RHSA-2021-3523.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/14/2021

Updated: 8/15/2022

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2021-3347

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_52_2:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_45_1:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_37_1:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_43_1:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_46_1:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_36_1:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_49_1:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_51_1:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_40_1:*:*:*:*:*:*:*, cpe:2.3:o:redhat:rhel_e4s:7.6:*:*:*:*:*:*:*, cpe:2.3:o:redhat:rhel_e4s:7.7:*:*:*:*:*:*:*

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: 9/14/2021

Vulnerability Publication Date: 1/29/2021

Exploitable With

CANVAS (CANVAS)

Metasploit (Netfilter x_tables Heap OOB Write Privilege Escalation)

Reference Information

CVE: CVE-2021-3347, CVE-2021-22555, CVE-2021-32399

RHSA: 2021:3523

CWE: 362, 416, 787