Detections
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Oracle Linux 8 : rpm (ELSA-2021-4489)

medium Nessus Plugin ID 155431

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-4489 advisory.

 - A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability. (CVE-2021-20266)

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://linux.oracle.com/errata/ELSA-2021-4489.html

Plugin Details

Severity: Medium

ID: 155431

File Name: oraclelinux_ELSA-2021-4489.nasl

Version: 1.2

Type: local

Agent: unix

Published: 11/17/2021

Updated: 11/17/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2021-20266

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:rpm-plugin-prioreset, p-cpe:/a:oracle:linux:rpm-plugin-selinux, p-cpe:/a:oracle:linux:rpm-plugin-syslog, p-cpe:/a:oracle:linux:rpm-plugin-systemd-inhibit, p-cpe:/a:oracle:linux:rpm-sign, cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:python3-rpm, p-cpe:/a:oracle:linux:rpm, p-cpe:/a:oracle:linux:rpm-apidocs, p-cpe:/a:oracle:linux:rpm-build, p-cpe:/a:oracle:linux:rpm-build-libs, p-cpe:/a:oracle:linux:rpm-cron, p-cpe:/a:oracle:linux:rpm-devel, p-cpe:/a:oracle:linux:rpm-libs, p-cpe:/a:oracle:linux:rpm-plugin-fapolicyd, p-cpe:/a:oracle:linux:rpm-plugin-ima

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/16/2021

Vulnerability Publication Date: 3/22/2021

Reference Information

CVE: CVE-2021-20266