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Amazon Linux 2 : elfutils (ALAS-2023-2197)

medium Nessus Plugin ID 179778

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Synopsis

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

Description

The version of elfutils installed on the remote host is prior to 0.176-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2197 advisory.

 - In elfutils 0.183, an infinite loop was found in the function handle_symtab in readelf.c .Which allows attackers to cause a denial of service (infinite loop) via crafted file. (CVE-2021-33294)

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 elfutils' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2197.html

https://alas.aws.amazon.com/cve/html/CVE-2021-33294.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Medium

ID: 179778

File Name: al2_ALAS-2023-2197.nasl

Version: 1.1

Type: local

Agent: unix

Published: 8/14/2023

Updated: 8/15/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2021-33294

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:elfutils-libelf, p-cpe:/a:amazon:linux:elfutils-devel-static, p-cpe:/a:amazon:linux:elfutils-libelf-devel-static, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:elfutils, p-cpe:/a:amazon:linux:elfutils-libelf-devel, p-cpe:/a:amazon:linux:elfutils-libs, p-cpe:/a:amazon:linux:elfutils-default-yama-scope, p-cpe:/a:amazon:linux:elfutils-debuginfo, p-cpe:/a:amazon:linux:elfutils-devel

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/3/2023

Vulnerability Publication Date: 7/18/2023

Reference Information

CVE: CVE-2021-33294