Amazon Linux 2 : openblas (ALASR4-2023-001)

critical Nessus Plugin ID 189334


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


The version of openblas installed on the remote host is prior to 0.3.9-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2R4-2023-001 advisory.

- An out-of-bounds read flaw was found in the CLARRV, DLARRV, SLARRV, and ZLARRV functions in lapack through version 3.10.0, as also used in OpenBLAS before version 0.3.18. Specially crafted inputs passed to these functions could cause an application using lapack to crash or possibly disclose portions of its memory.

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


Run 'yum update openblas' to update your system.

See Also

Plugin Details

Severity: Critical

ID: 189334

File Name: al2_ALASR4-2023-001.nasl

Version: 1.0

Type: local

Agent: unix

Published: 1/23/2024

Updated: 1/23/2024

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

Risk Information


Risk Factor: Medium

Score: 5.2


Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2021-4048


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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openblas, p-cpe:/a:amazon:linux:openblas-rblas, p-cpe:/a:amazon:linux:openblas-debuginfo, p-cpe:/a:amazon:linux:openblas-devel, p-cpe:/a:amazon:linux:openblas-openmp, p-cpe:/a:amazon:linux:openblas-openmp64, p-cpe:/a:amazon:linux:openblas-openmp64_, p-cpe:/a:amazon:linux:openblas-serial, p-cpe:/a:amazon:linux:openblas-serial64, p-cpe:/a:amazon:linux:openblas-serial64_, p-cpe:/a:amazon:linux:openblas-static, p-cpe:/a:amazon:linux:openblas-threads, p-cpe:/a:amazon:linux:openblas-threads64, p-cpe:/a:amazon:linux:openblas-threads64_, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/7/2023

Vulnerability Publication Date: 12/8/2021

Reference Information

CVE: CVE-2021-4048