Detections
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Amazon Linux 2023 : cpp, gcc, gcc-c++ (ALAS2023-2023-030)

high Nessus Plugin ID 173142

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-030 advisory.

 A flaw was found in the way Unicode standards are implemented in the context of development environments, which have specialized requirements for rendering text. An attacker could exploit this to deceive a human reviewer by creating a malicious patch containing well placed BiDi characters. The special handling and rendering of those characters can be then used in an attempt to hide unexpected and potentially dangerous behaviour from the reviewer. (CVE-2021-42574)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'dnf update gcc --releasever=2023.0.20230222 ' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2023-030.html

https://alas.aws.amazon.com/cve/html/CVE-2021-42574.html

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

Plugin Details

Severity: High

ID: 173142

File Name: al2023_ALAS2023-2023-030.nasl

Version: 1.2

Type: local

Agent: unix

Published: 3/21/2023

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4

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

CVSS Score Source: CVE-2021-42574

CVSS v3

Risk Factor: High

Base Score: 8.3

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libgcc, p-cpe:/a:amazon:linux:libgfortran, p-cpe:/a:amazon:linux:gcc-offload-nvptx-debuginfo, p-cpe:/a:amazon:linux:libstdc%2b%2b, p-cpe:/a:amazon:linux:gcc-gdb-plugin, p-cpe:/a:amazon:linux:libgccjit-debuginfo, p-cpe:/a:amazon:linux:libatomic, p-cpe:/a:amazon:linux:libstdc%2b%2b-devel, p-cpe:/a:amazon:linux:libasan-static, p-cpe:/a:amazon:linux:gcc-gfortran, p-cpe:/a:amazon:linux:libgccjit, p-cpe:/a:amazon:linux:gcc-gdb-plugin-debuginfo, p-cpe:/a:amazon:linux:libtsan, p-cpe:/a:amazon:linux:libitm-static, p-cpe:/a:amazon:linux:liblsan-static, p-cpe:/a:amazon:linux:libgomp-offload-nvptx, p-cpe:/a:amazon:linux:libquadmath-debuginfo, p-cpe:/a:amazon:linux:libatomic-debuginfo, p-cpe:/a:amazon:linux:libgfortran-static, p-cpe:/a:amazon:linux:libgomp-debuginfo, p-cpe:/a:amazon:linux:gcc-plugin-devel, p-cpe:/a:amazon:linux:gcc-offload-nvptx, p-cpe:/a:amazon:linux:libquadmath-static, p-cpe:/a:amazon:linux:gcc-gfortran-debuginfo, p-cpe:/a:amazon:linux:gcc-debuginfo, p-cpe:/a:amazon:linux:libubsan, p-cpe:/a:amazon:linux:libgomp, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:gcc-debugsource, p-cpe:/a:amazon:linux:libasan-debuginfo, p-cpe:/a:amazon:linux:libquadmath-devel, p-cpe:/a:amazon:linux:libquadmath, p-cpe:/a:amazon:linux:gcc-plugin-devel-debuginfo, p-cpe:/a:amazon:linux:libtsan-static, p-cpe:/a:amazon:linux:libstdc%2b%2b-debuginfo, p-cpe:/a:amazon:linux:libstdc%2b%2b-docs, p-cpe:/a:amazon:linux:libtsan-debuginfo, p-cpe:/a:amazon:linux:libubsan-debuginfo, p-cpe:/a:amazon:linux:liblsan-debuginfo, p-cpe:/a:amazon:linux:libgomp-offload-nvptx-debuginfo, p-cpe:/a:amazon:linux:gcc, p-cpe:/a:amazon:linux:libitm-devel, p-cpe:/a:amazon:linux:libgfortran-debuginfo, p-cpe:/a:amazon:linux:cpp, p-cpe:/a:amazon:linux:libatomic-static, p-cpe:/a:amazon:linux:libgcc-debuginfo, p-cpe:/a:amazon:linux:cpp-debuginfo, p-cpe:/a:amazon:linux:gcc-c%2b%2b, p-cpe:/a:amazon:linux:liblsan, p-cpe:/a:amazon:linux:libasan, p-cpe:/a:amazon:linux:libgccjit-devel, p-cpe:/a:amazon:linux:gcc-c%2b%2b-debuginfo, p-cpe:/a:amazon:linux:libitm, p-cpe:/a:amazon:linux:libstdc%2b%2b-static, p-cpe:/a:amazon:linux:libitm-debuginfo, p-cpe:/a:amazon:linux:libubsan-static

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: 2/17/2023

Vulnerability Publication Date: 11/1/2021

Reference Information

CVE: CVE-2021-42574