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CentOS 7 : kpatch-patch (RHSA-2021:3381)

high Nessus Plugin ID 208651

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Synopsis

The remote CentOS Linux host is missing one or more security updates.

Description

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3381 advisory.

 - A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c.
 This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space (CVE-2021-22555)

 - net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller. (CVE-2021-32399)

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/errata/RHSA-2021:3381

Plugin Details

Severity: High

ID: 208651

File Name: centos_RHSA-2021-3381.nasl

Version: 1.2

Type: local

Agent: unix

Published: 10/9/2024

Updated: 10/10/2024

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 4

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

CVSS Score Source: CVE-2021-22555

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: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_25_1, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_2_2, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_36_2, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_6_1, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_21_1, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_24_1, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_11_1, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_31_1, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_2_1, p-cpe:/a:centos:centos:kpatch-patch-3_10_0-1160_15_2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/31/2021

Vulnerability Publication Date: 4/20/2021

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Netfilter x_tables Heap OOB Write Privilege Escalation)

Reference Information

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

RHSA: 2021:3381