RHEL 6 : kernel (RHSA-2021:1288)

high Nessus Plugin ID 157845

Synopsis

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

Description

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1288 advisory.

- kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)

- kernel: increase slab leak leads to DoS (CVE-2021-20265)

- kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)

- kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)

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/122.html

https://cwe.mitre.org/data/definitions/125.html

https://cwe.mitre.org/data/definitions/200.html

https://cwe.mitre.org/data/definitions/250.html

https://cwe.mitre.org/data/definitions/400.html

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

https://cwe.mitre.org/data/definitions/667.html

https://access.redhat.com/security/cve/CVE-2020-29661

https://access.redhat.com/security/cve/CVE-2021-20265

https://access.redhat.com/security/cve/CVE-2021-27364

https://access.redhat.com/security/cve/CVE-2021-27365

https://access.redhat.com/errata/RHSA-2021:1288

https://bugzilla.redhat.com/1906525

https://bugzilla.redhat.com/1908827

https://bugzilla.redhat.com/1930078

https://bugzilla.redhat.com/1930080

Plugin Details

Severity: High

ID: 157845

File Name: redhat-RHSA-2021-1288.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2/9/2022

Updated: 2/14/2022

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

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

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

CVSS Score Source: CVE-2020-29661

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:rhel_els:6, cpe:/o:redhat:rhel_eus:6.0, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-firmware, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:python-perf

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: 4/20/2021

Vulnerability Publication Date: 12/9/2020

Reference Information

CVE: CVE-2020-29661, CVE-2021-20265, CVE-2021-27364, CVE-2021-27365

RHSA: 2021:1288

CWE: 122, 125, 200, 250, 400, 416, 667