Amazon Linux 2 : libarchive (ALAS-2023-2279)

critical Nessus Plugin ID 182637

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of libarchive installed on the remote host is prior to 3.1.2-14. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2279 advisory.

- In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference.
NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution. (CVE-2022-36227)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update libarchive' to update your system.

Plugin Details

Severity: Critical

ID: 182637

File Name: al2_ALAS-2023-2279.nasl

Version: 1.0

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 10/5/2023

Updated: 10/5/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2022-36227

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libarchive-debuginfo, p-cpe:/a:amazon:linux:libarchive-devel, p-cpe:/a:amazon:linux:bsdtar, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:libarchive, p-cpe:/a:amazon:linux:bsdcpio

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/27/2023

Vulnerability Publication Date: 11/8/2022

Reference Information

CVE: CVE-2022-36227

Detections

Analytics