Detections
Analytics

Oracle Linux 7 : kernel (ELSA-2021-3327)

high Nessus Plugin ID 152978

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Synopsis

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

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-3327 advisory.

 - redhat: ppc64: CONFIG_RTAS_FILTER (Aristeu Rozanski) [1906443] {CVE-2020-27777}
 - powerpc/rtas: Fix typo of ibm,open-errinjct in RTAS filter (Aristeu Rozanski) [1906443] {CVE-2020-27777}
 - powerpc/rtas: Restrict RTAS requests from userspace (Aristeu Rozanski) [1906443] {CVE-2020-27777}
 - netfilter: x_tables: fix compat match/target pad out-of-bound write (Florian Westphal) [1980489] {CVE-2021-22555}
 - netfilter: x_tables: Use correct memory barriers. (Phil Sutter) [1949087] {CVE-2021-29650}
 - bpf, x86: Validate computation of branch displacements for x86-64 (Jiri Olsa) [1947249] {CVE-2021-29154}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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://linux.oracle.com/errata/ELSA-2021-3327.html

Plugin Details

Severity: High

ID: 152978

File Name: oraclelinux_ELSA-2021-3327.nasl

Version: 1.8

Type: local

Agent: unix

Published: 9/2/2021

Updated: 10/22/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2021-29154

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:oracle:linux:kernel-abi-whitelists, p-cpe:/a:oracle:linux:kernel-tools-libs-devel, p-cpe:/a:oracle:linux:bpftool, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-tools-libs, p-cpe:/a:oracle:linux:perf, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-tools, p-cpe:/a:oracle:linux:python-perf, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/31/2021

Vulnerability Publication Date: 12/10/2020

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Netfilter x_tables Heap OOB Write Privilege Escalation)

Reference Information

CVE: CVE-2020-27777, CVE-2021-22555, CVE-2021-29154, CVE-2021-29650, CVE-2021-32399