Detections
Analytics

Oracle Linux 7 : kernel (ELSA-2021-3801)

high Nessus Plugin ID 154097

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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-2021-3801 advisory.

 - KVM: nSVM: always intercept VMLOAD/VMSAVE when nested(CVE-2021-3656) (Jon Maloy) [1985425] {CVE-2021-3656}
 - KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl (CVE-2021-3653) (Jon Maloy) [1985408] {CVE-2021-3653}
 - KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow (Jon Maloy) [1988218] {CVE-2021-37576}

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-2021-3801.html

Plugin Details

Severity: High

ID: 154097

File Name: oraclelinux_ELSA-2021-3801.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/13/2021

Updated: 10/23/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2021-37576

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2021-3656

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.2

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L

CVSS Score Source: CVE-2021-22543

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: 10/12/2021

Vulnerability Publication Date: 5/26/2021

Reference Information

CVE: CVE-2021-22543, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576