Detections
Analytics

Oracle Linux 8 : libtar (ELSA-2023-2898)

critical Nessus Plugin ID 176281

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Synopsis

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

Description

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2023-2898 advisory.

 - fix use-after-free bugs introduced by incorrect memleak fixes (CVE-2021-33640)
 - fix memory leaks through gnu_long{name,link} (CVE-2021-33645 CVE-2021-33646)

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 libtar package.

See Also

https://linux.oracle.com/errata/ELSA-2023-2898.html

Plugin Details

Severity: Critical

ID: 176281

File Name: oraclelinux_ELSA-2023-2898.nasl

Version: 1.1

Type: local

Agent: unix

Published: 5/24/2023

Updated: 10/22/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2021-33644

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

CVSS Score Source: CVE-2021-33643

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:libtar, cpe:/o:oracle:linux:8

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/24/2023

Vulnerability Publication Date: 8/10/2022

Reference Information

CVE: CVE-2021-33643, CVE-2021-33644, CVE-2021-33645, CVE-2021-33646